Moscow has ramped up covert operations in Mexico, with spies meeting handlers in its bustling capital and seaside resorts, U.S. officials say.

© Marian Carrasquero for The New York Times

Poland has charged a little-known Russian opposition figure with espionage and participating in a bomb plot. His friends are perplexed.

© via Danila Buzanov

Britain’s domestic intelligence agency said China was using headhunters to gather intelligence from lawmakers and parliamentary staff members.

Xi Jinping gave two cellphones to South Korea’s president, who asked how secure they were. “You can check if there’s a backdoor,” he said with a laugh.

A botched spying case prompted accusations that the British government was soft on China, highlighting tensions between economic and national security interests.

A parade of scandals tarnished the prince’s reputation, long before he gave up using his title as Duke of York on Friday.

Evidence prepared for a collapsed espionage trial was published by an under-pressure government in Britain, offering a window into Western countries’ struggle to define Beijing as friend or foe.