禁止对华出口尖端芯片:2022年10月7日,美国商务部工业和安全局(Bureau of Industry and Security,
“BIS”)公布《出口管制条例》(EAR),一年后再度收紧,尤其针对向中国出口高性能芯片和半导体制造相关事宜。重点管控的目标是被用于数据中心的尖端芯片以及用于训练AI的大模型芯片。美国商务部将逐案调查酌情发放出口许可证。这一背景下,2023年10月美国禁止了英伟达(Nvidia)向中国输出先进芯片。
为期12天的第54届蒙特利尔新电影节10月19日闭幕,三年前毕业于北京电影学院摄影系的中国导演魏德安和徐一丹联合执导的22分钟剧情短片《课外活动》获最佳短片金狼奖 ,影片通过对青春期探索禁忌行为之后的心理状态进行细腻剖析,揭示了在不同的性别语境之下,少女所面临的独特羞耻感及困惑。获得最佳长片金狼奖的是葡萄牙导演佩德罗·皮尼奥(Pedro Pinho)执导的法国、葡萄牙等国合拍的电影 《笑与刀》(O riso e a faca)。
President Donald Trump has said the US will return two people who survived a strike on what he called a "drug-carrying submarine" to their countries of origin, Ecuador and Colombia.
Writing on social media, Trump said two other people were killed in the US strike on the vessel, which he said US intelligence confirmed was "loaded up with mostly Fentanyl, and other illegal narcotics".
The attack on Thursday is at least the sixth US strike on ships in the Caribbean Sea in recent weeks. It is the first time survivors have been reported.
At least 27 people were killed in the prior five boat strikes in the waters off Venezuela, according to figures released by the administration.
The two survivors were rescued by a US military helicopter and then shuttled onto a US warship in the Caribbean, unnamed US officials told US media earlier.
In recent weeks, Trump has ramped up threats against Venezuela's leadership over claims that the country is sending drugs to the US. Venezuelan President Nicolás Maduro has accused Trump of trying to make the South American nation "an American colony".
Trump has defended the ongoing boat attacks, saying they are aimed at stemming the flow of drugs from Latin America into the US, but his government has not provided evidence or details about the identities of the vessels or those on board.
"It was my great honor to destroy a very large DRUG-CARRYING SUBMARINE that was navigating towards the United States on a well known narcotrafficking transit route," Trump said in his Truth Social post on Saturday.
"The two surviving terrorists are being returned to their Countries of origin, Ecuador and Colombia, for detention and prosecution."
He added that no US military personnel were injured in the attack.
On Friday, the US president had said the submarine targeting the latest attack was "built specifically for the transportation of massive amounts of drugs".
"This was not an innocent group of people. I don't know too many people who have submarines, and that was an attack on a drug-carrying, loaded submarine," he added.
UN-appointed human rights experts have described the US strikes as "extrajudicial executions".
Trump earlier told reporters that he had authorised the CIA to conduct covert operations in Venezuela, and that he was considering launching attacks on Venezuelan soil.
Narco-subs have become a popular way to transport drugs as they can go largely undetected, and can be sunk after delivery. They are often homemade and constructed using fibreglass and plywood.
The US, as well as other coastal nations, have previously intercepted some of these subs.
D4vd performed at Coachella music festival months before a body was discovered in the trunk of his car
The day after a body was found in his car in Hollywood, singer D4vd was belting his TikTok hit Romantic Homicide - a brooding breakup song about killing an ex with no regret - to a sold-out crowd in Minneapolis.
The US recording artist had self-launched his music career from his sister's closet while working a part-time gig at Starbucks. It led him to viral fame, millions of followers online, and a global tour.
But all of it came to an abrupt halt last month with the discovery of a severely decomposed body in the front trunk of his Tesla.
The corpse was identified as that of 15-year-old runaway Celeste Rivas Hernandez.
A month later, mystery still surrounds the teen's death, as well as her relationship to the 20-year-old singer, whose legal name is David Anthony Burke.
Getty Images
D4vd performs on Jimmy Kimmel Live!
Deep dives into his macabre oeuvre - which is peppered with references to death, remembrance, violence and bloody motifs - have led some to question if life was imitating art and vice versa.
The young singer has yet to publicly comment on the case or the grim discovery in his car. His spokesperson has only said that that he is "fully cooperating with authorities" and he has since hired a prominent criminal defence attorney who has represented celebrities such as Mel Gibson, Lindsay Lohan, Kanye West and Britney Spears.
Representatives for the singer - including his lawyer Blair Berk, Universal Music Group, Darkroom Records and Sony Music Publishing - did not respond to the BBC's requests for comment.
Rivas Hernandez's cause of death has yet to be determined.
The county's medical examiner has said her body was "severely decomposed" when it was found and has deferred making a ruling on how she died - an investigation they say could take months.
Getty Images
Police have also not named a suspect or person of interest in case, even weeks after discovering her body.
The Los Angeles Police Department has not offered many details in the case or the probe, calling it an open death investigation. The department would not comment on multiple questions posed by the BBC about the case, the investigation and any connections the singer may have to Rivas Hernandez.
"It's just such a strange one," Neama Rahmani, a former prosecutor and Los Angeles attorney, told the BBC. "It keeps getting more bizarre each day that goes on without an arrest."
That lack of information has also seemed to fuel intrigue. Fans, true-crime enthusiasts and internet sleuths have launched their own inquiries, locking in on details that appear to connect the teen girl with the gamer-turned-songwriter, who was once heralded by GQ as a "Mouthpiece for Gen-Z Heartache".
A runaway teen found dead in a Tesla
Rivas Hernandez - who lived about 75 miles away from where her body was discovered - had last been reported missing by her family in April 2024, but it was not the first time she had run away from their Lake Elsinore home.
A first-generation daughter of immigrant parents from El Salvador, neighbours recognised her as a girl who would visit the corner store almost daily to buy candy and soda, according to the Los Angeles Times.
She first went missing on Valentine's Day 2024, and her family filed a missing persons report the next day.
Posters of her face were put up in her neighbourhood and her mother posted pleas on Facebook in Spanish for her return - public overtures that apparently irked the teen.
Over the next two years, her parents would file at least two more missing-persons reports.
Her family and friends told the newspaper that every time Rivas Hernandez ran away, she would eventually return and blend back into her life as a middle schooler.
Getty Images
When the teens' remains were found in a bag in D4vd's Tesla on 8 September, the medical examiner said that she was wearing a tube top, size small black leggings and jewellery, including a yellow metal stud earring and a yellow metal chain bracelet.
She also had a tattoo that read "Shhh…" on her index finger - a marking nearly identical to that on the pop singer's own index finger.
The decomposition of her body indicated that she had already been "deceased for several weeks", investigators said.
Her family, who described her as a beloved daughter, sister, cousin and friend, has said they are "heartbroken and devastated by this tragic loss". They have since solicited money on a crowdfunding website to pay for her funeral, which took place earlier this month.
A singer on the precipice of main-stream fame
D4vd's rise to stardom - fuelled by TikTok and online gaming - is a paradigm for his generation.
Growing up near Houston, Texas, he was home-schooled and said he exclusively listened to gospel music until he was 13. He became an avid Fortnite player in 2017 and launched his music career using pop songs to soundtrack gameplay montages that he posted on YouTube.
He started making his own music when he ran into copyright hurdles, beginning by recording songs on The BandLab app in 2021 and uploading his work on SoundCloud.
Soon, he saw his music breaking through with thousands of listens. He then released what would become his two biggest hits thus far: Romantic Homicide and Here With Me.
The songs went viral on TikTok and led to billions of streams on Spotify, where he has amassed 33 million monthly listeners.
He signed with Darkroom and Interscope Records and released his debut EP, Petals and Thorns, in 2023. That same year, he landed on Variety's Young Hollywood list and opened for SZA on her SOS tour.
Last spring, he made his Coachella debut - known as the festival for up-and-coming talent to break into mainstream fame. He was also commissioned by Fortnite - which he has said shaped his story as an artist - to create the game's first official anthem, Locked & Loaded.
Getty Images
A discovery that broke a family and halted a career
But this ascent to fame came to a pause when his Tesla was towed to an impoundment lot and authorities found a bag inside the front trunk that contained Rivas Hernandez's decomposing remains after someone complained about a foul smell.
His world tour was cancelled within days of the discovery, and Sony Music Publishing reportedly suspended promotion of his sophomore album.
Los Angeles police soon raided the posh Hollywood Hills mansion where the singer was living, just blocks from where his Tesla had been towed.
US retailer Hollister and footwear giant Crocs dropped D4vd from marketing campaigns and Telepatía singer Kali Uchis announced she was taking down their collaboration, Crashing.
But while his career ground to a screeching halt,authorities have been silent on the investigation into Rivas Hernandez's death.
Investigators have not released any new information in the case since 29 September.
Footage of the Tesla where Rivas Hernandez's body was found
While online sleuths have been quick to speculate, legal experts say that there is still much we don't know.
"You have this connection to David that seems pretty strong," Mr Rahmani, the former prosecutor, told the BBC. "There is a lot of smoke but look, he could be absolutely innocent and it could be someone else who had access to his vehicle."
Mr Rahmani said while there are many questions in this case, the biggest for him is "what is taking the LAPD so long".
"They haven't released any real information," he said. "This isn't a good look for the LAPD and it's a terrible look for D4vd."
He added that a case like this has added pressures: it involves a teen girl's death, it has garnered global headlines, and the investigation involves a celebrity.
Mr Rahmani noted that technology and potential for video footage is likely to be a "treasure trove" for investigators. Telsa vehicles come with advanced technology that tracks vehicles, notifies users when things like the trunk is open and are also outfitted with a slew of cameras as part of its Sentry Mode systems.
On top of this, the Hollywood home where he was living also had cameras. When authorities searched the home last month, investigators took a DVR that stores video and other data from the surveillance system.
Malden Trifunovic, the owner of the Hollywood Hills home D4vd was renting, has told the BBC that he has hired a private investigator to help uncover what might have happened inside his multi-million-dollar abode.
D4vd's manager Josh Marshall, the founder of Mogul Vision, rented the home for D4vd and has distanced himself from the singer. He vehemently denied rumours that he is connected to the death investigation.
The widening mystery
In addition to the mystery surrounding the cause of Rivas Hernandez's death, it is still unclear what relationship the teenager had with the 20-year-old singer.
Rivas Hernandez would have turned 15 the day before her body was found by police.
In California, the age of consent is 18.
Family, friends and those who knew her have told local media that she had been dating someone named David and said he was a music artist.
A former middle-school science teacher blamed her last attempt to run away from home, in the spring of 2024, on her dating a music artist she'd met online.
"She's been missing since I taught her," the teacher said in a viral video after Rivas Hernandez's body was identified.
Online sleuths have also connected her to the singer in a number of ways, from their matching tattoos to photos he posted online that appear to show them together.
Getty Images
A close up of D4vd's tattoo on his finger
But D4vd has not addressed the rumours, nor have police.
Like many who don't follow indie pop music, his landlord Mr Trifunovic said he had never heard of D4vd until news broke about the discovery. He didn't even know it was D4vd who was renting his home because the lease had been signed by the singer's manager, Mr Marshall.
"I share the same anxiety and desire to understand what happened to poor Celeste as everyone else does," Mr Trifunovic told the BBC.
Although he said he trusts the LAPD to conduct a thorough investigation, he too, is anxious for information.
"There is absolutely no question that a crime was committed," he said.
"She did not place herself in the front trunk of the Tesla or move the vehicle to where it was found."
The most worrying feature of the current AI ‘revolution’ is how heavily it’s being promoted by everyone from vibe coders to governments. The best and most enduring revolutions are quiet, and bring change because they’re so compelling. If something new has to be heavily evangelised, look deeply inside it to discover why, and who stands to gain most from that snake-oil.
In the case of Mac firmware, change has been so underplayed that you might not have realised what has happened over the last decade. But Macs have gone from impending disaster in Thunderstrike 2 with many running old firmware known to be vulnerable, to Secure Boot and thoroughly reliable updates.
In 2015 Trammell Hudson, Xeno Kovah and Corey Kallenberg demonstrated a firmware worm they named Thunderstrike 2 that could have been abused to insert malware in boot flash storage in Macs. Had that been exploited it would have been disastrous. Apple acted quickly by hiring Kovah and Kallenberg, and a third firmware security researcher Nikolaj Schlej, but shortly after that Rich Smith and Pepijn Bruienne, then of Duo Labs, reported that many Macs were running outdated firmware. When Apple addressed Thunderstrike 2 it could thus have taken a year or more before most Macs would have been protected.
While Kovah, Kallenberg and Schlej were busy securing firmware, and developing eficheck to routinely screen it in every Mac each week, several of us were trying to work out how to maintain a list of current firmware versions for users to check their Macs against. The answer came in eficheck, which obligingly informed us of those it accepted, and we then discovered how to extract firmware update information from macOS updates, for which I’m eternally grateful to Pico for doing the work. From 4 October 2017 those version lists have been published on this blog.
Two years later, in July 2019, firmware version checking was automated in EFIcienC, the precursor to SilentKnight, and became one of the pillars of checking that your Mac was secure.
In my latest revision of that guidance I was at last able to write that firmware “no longer needs to be checked separately” from macOS. My latest list of firmware versions for macOS 26 Tahoe contains just two, compared with over 39 given for High Sierra. The concern of dozens of articles here over those ten years, firmware and its updating can now be trusted, as Macs have moved from EFI to iBridge (T2) and iBoot (Apple silicon), with modern macOS updaters that install firmware reliably. Well, almost every time.
While Apple implies this in its Platform Security Guide, this remains a quiet revolution that didn’t mean anything to marketing, nor was there any mention in a press release. Neither do Apple’s support notes explain how it makes Apple silicon Macs the first to run the firmware matched with their macOS, and to be fully downgradable using IPSW image files.
This journey hasn’t been smooth, and many will still remember models such as the iMac Retina 5K 27-inch Late 2015 (iMac17,1), which in certain configurations simply wouldn’t update its firmware. We discovered that some other Macs updated reliably until their internal storage was replaced. In the end it was the introduction of the T2 chip that made the big difference, bringing the same EFI and iBridge versions across the whole range of Macs.
Compare this with UEFI Secure Boot, an option that Apple wisely decided not to pursue. One recent vulnerability that could have allowed an attacker to deploy malicious bootkits in systems with Secure Boot enabled was reported by ESET in June 2024, but that vulnerable firmware wasn’t revoked by Microsoft until 14 January 2025. Another recent UEFI vulnerability affecting multiple models of Framework computers, BombShell, allows bypass of their Secure Boot, requiring firmware updates that are still being rolled out.
Sometimes we need to look back to see how far we have come.
D4vd performed at Coachella music festival months before a body was discovered in the trunk of his car
The day after a body was found in his car in Hollywood, singer D4vd was belting his TikTok hit Romantic Homicide - a brooding breakup song about killing an ex with no regret - to a sold-out crowd in Minneapolis.
The US recording artist had self-launched his music career from his sister's closet while working a part-time gig at Starbucks. It led him to viral fame, millions of followers online, and a global tour.
But all of it came to an abrupt halt last month with the discovery of a severely decomposed body in the front trunk of his Tesla.
The corpse was identified as that of 15-year-old runaway Celeste Rivas Hernandez.
A month later, mystery still surrounds the teen's death, as well as her relationship to the 20-year-old singer, whose legal name is David Anthony Burke.
Getty Images
D4vd performs on Jimmy Kimmel Live!
Deep dives into his macabre oeuvre - which is peppered with references to death, remembrance, violence and bloody motifs - have led some to question if life was imitating art and vice versa.
The young singer has yet to publicly comment on the case or the grim discovery in his car. His spokesperson has only said that that he is "fully cooperating with authorities" and he has since hired a prominent criminal defence attorney who has represented celebrities such as Mel Gibson, Lindsay Lohan, Kanye West and Britney Spears.
Representatives for the singer - including his lawyer Blair Berk, Universal Music Group, Darkroom Records and Sony Music Publishing - did not respond to the BBC's requests for comment.
Rivas Hernandez's cause of death has yet to be determined.
The county's medical examiner has said her body was "severely decomposed" when it was found and has deferred making a ruling on how she died - an investigation they say could take months.
Getty Images
Police have also not named a suspect or person of interest in case, even weeks after discovering her body.
The Los Angeles Police Department has not offered many details in the case or the probe, calling it an open death investigation. The department would not comment on multiple questions posed by the BBC about the case, the investigation and any connections the singer may have to Rivas Hernandez.
"It's just such a strange one," Neama Rahmani, a former prosecutor and Los Angeles attorney, told the BBC. "It keeps getting more bizarre each day that goes on without an arrest."
That lack of information has also seemed to fuel intrigue. Fans, true-crime enthusiasts and internet sleuths have launched their own inquiries, locking in on details that appear to connect the teen girl with the gamer-turned-songwriter, who was once heralded by GQ as a "Mouthpiece for Gen-Z Heartache".
A runaway teen found dead in a Tesla
Rivas Hernandez - who lived about 75 miles away from where her body was discovered - had last been reported missing by her family in April 2024, but it was not the first time she had run away from their Lake Elsinore home.
A first-generation daughter of immigrant parents from El Salvador, neighbours recognised her as a girl who would visit the corner store almost daily to buy candy and soda, according to the Los Angeles Times.
She first went missing on Valentine's Day 2024, and her family filed a missing persons report the next day.
Posters of her face were put up in her neighbourhood and her mother posted pleas on Facebook in Spanish for her return - public overtures that apparently irked the teen.
Over the next two years, her parents would file at least two more missing-persons reports.
Her family and friends told the newspaper that every time Rivas Hernandez ran away, she would eventually return and blend back into her life as a middle schooler.
Getty Images
When the teens' remains were found in a bag in D4vd's Tesla on 8 September, the medical examiner said that she was wearing a tube top, size small black leggings and jewellery, including a yellow metal stud earring and a yellow metal chain bracelet.
She also had a tattoo that read "Shhh…" on her index finger - a marking nearly identical to that on the pop singer's own index finger.
The decomposition of her body indicated that she had already been "deceased for several weeks", investigators said.
Her family, who described her as a beloved daughter, sister, cousin and friend, has said they are "heartbroken and devastated by this tragic loss". They have since solicited money on a crowdfunding website to pay for her funeral, which took place earlier this month.
A singer on the precipice of main-stream fame
D4vd's rise to stardom - fuelled by TikTok and online gaming - is a paradigm for his generation.
Growing up near Houston, Texas, he was home-schooled and said he exclusively listened to gospel music until he was 13. He became an avid Fortnite player in 2017 and launched his music career using pop songs to soundtrack gameplay montages that he posted on YouTube.
He started making his own music when he ran into copyright hurdles, beginning by recording songs on The BandLab app in 2021 and uploading his work on SoundCloud.
Soon, he saw his music breaking through with thousands of listens. He then released what would become his two biggest hits thus far: Romantic Homicide and Here With Me.
The songs went viral on TikTok and led to billions of streams on Spotify, where he has amassed 33 million monthly listeners.
He signed with Darkroom and Interscope Records and released his debut EP, Petals and Thorns, in 2023. That same year, he landed on Variety's Young Hollywood list and opened for SZA on her SOS tour.
Last spring, he made his Coachella debut - known as the festival for up-and-coming talent to break into mainstream fame. He was also commissioned by Fortnite - which he has said shaped his story as an artist - to create the game's first official anthem, Locked & Loaded.
Getty Images
A discovery that broke a family and halted a career
But this ascent to fame came to a pause when his Tesla was towed to an impoundment lot and authorities found a bag inside the front trunk that contained Rivas Hernandez's decomposing remains after someone complained about a foul smell.
His world tour was cancelled within days of the discovery, and Sony Music Publishing reportedly suspended promotion of his sophomore album.
Los Angeles police soon raided the posh Hollywood Hills mansion where the singer was living, just blocks from where his Tesla had been towed.
US retailer Hollister and footwear giant Crocs dropped D4vd from marketing campaigns and Telepatía singer Kali Uchis announced she was taking down their collaboration, Crashing.
But while his career ground to a screeching halt,authorities have been silent on the investigation into Rivas Hernandez's death.
Investigators have not released any new information in the case since 29 September.
Footage of the Tesla where Rivas Hernandez's body was found
While online sleuths have been quick to speculate, legal experts say that there is still much we don't know.
"You have this connection to David that seems pretty strong," Mr Rahmani, the former prosecutor, told the BBC. "There is a lot of smoke but look, he could be absolutely innocent and it could be someone else who had access to his vehicle."
Mr Rahmani said while there are many questions in this case, the biggest for him is "what is taking the LAPD so long".
"They haven't released any real information," he said. "This isn't a good look for the LAPD and it's a terrible look for D4vd."
He added that a case like this has added pressures: it involves a teen girl's death, it has garnered global headlines, and the investigation involves a celebrity.
Mr Rahmani noted that technology and potential for video footage is likely to be a "treasure trove" for investigators. Telsa vehicles come with advanced technology that tracks vehicles, notifies users when things like the trunk is open and are also outfitted with a slew of cameras as part of its Sentry Mode systems.
On top of this, the Hollywood home where he was living also had cameras. When authorities searched the home last month, investigators took a DVR that stores video and other data from the surveillance system.
Malden Trifunovic, the owner of the Hollywood Hills home D4vd was renting, has told the BBC that he has hired a private investigator to help uncover what might have happened inside his multi-million-dollar abode.
D4vd's manager Josh Marshall, the founder of Mogul Vision, rented the home for D4vd and has distanced himself from the singer. He vehemently denied rumours that he is connected to the death investigation.
The widening mystery
In addition to the mystery surrounding the cause of Rivas Hernandez's death, it is still unclear what relationship the teenager had with the 20-year-old singer.
Rivas Hernandez would have turned 15 the day before her body was found by police.
In California, the age of consent is 18.
Family, friends and those who knew her have told local media that she had been dating someone named David and said he was a music artist.
A former middle-school science teacher blamed her last attempt to run away from home, in the spring of 2024, on her dating a music artist she'd met online.
"She's been missing since I taught her," the teacher said in a viral video after Rivas Hernandez's body was identified.
Online sleuths have also connected her to the singer in a number of ways, from their matching tattoos to photos he posted online that appear to show them together.
Getty Images
A close up of D4vd's tattoo on his finger
But D4vd has not addressed the rumours, nor have police.
Like many who don't follow indie pop music, his landlord Mr Trifunovic said he had never heard of D4vd until news broke about the discovery. He didn't even know it was D4vd who was renting his home because the lease had been signed by the singer's manager, Mr Marshall.
"I share the same anxiety and desire to understand what happened to poor Celeste as everyone else does," Mr Trifunovic told the BBC.
Although he said he trusts the LAPD to conduct a thorough investigation, he too, is anxious for information.
"There is absolutely no question that a crime was committed," he said.
"She did not place herself in the front trunk of the Tesla or move the vehicle to where it was found."
President Donald Trump has said the US will return two people who survived a strike on what he called a "drug-carrying submarine" to their countries of origin, Ecuador and Colombia.
Writing on social media, Trump said two other people were killed in the US strike on the vessel, which he said US intelligence confirmed was "loaded up with mostly Fentanyl, and other illegal narcotics".
The attack on Thursday is at least the sixth US strike on ships in the Caribbean Sea in recent weeks. It is the first time survivors have been reported.
At least 27 people were killed in the prior five boat strikes in the waters off Venezuela, according to figures released by the administration.
The two survivors were rescued by a US military helicopter and then shuttled onto a US warship in the Caribbean, unnamed US officials told US media earlier.
In recent weeks, Trump has ramped up threats against Venezuela's leadership over claims that the country is sending drugs to the US. Venezuelan President Nicolás Maduro has accused Trump of trying to make the South American nation "an American colony".
Trump has defended the ongoing boat attacks, saying they are aimed at stemming the flow of drugs from Latin America into the US, but his government has not provided evidence or details about the identities of the vessels or those on board.
"It was my great honor to destroy a very large DRUG-CARRYING SUBMARINE that was navigating towards the United States on a well known narcotrafficking transit route," Trump said in his Truth Social post on Saturday.
"The two surviving terrorists are being returned to their Countries of origin, Ecuador and Colombia, for detention and prosecution."
He added that no US military personnel were injured in the attack.
On Friday, the US president had said the submarine targeting the latest attack was "built specifically for the transportation of massive amounts of drugs".
"This was not an innocent group of people. I don't know too many people who have submarines, and that was an attack on a drug-carrying, loaded submarine," he added.
UN-appointed human rights experts have described the US strikes as "extrajudicial executions".
Trump earlier told reporters that he had authorised the CIA to conduct covert operations in Venezuela, and that he was considering launching attacks on Venezuelan soil.
Narco-subs have become a popular way to transport drugs as they can go largely undetected, and can be sunk after delivery. They are often homemade and constructed using fibreglass and plywood.
The US, as well as other coastal nations, have previously intercepted some of these subs.