When Russian President Vladimir Putin sits down at the table in Helsinki on Monday, he will surely have in the back of his mind some intelligence worries that have nothing to do with the U.S. president seated across from him.

Putin’s elite spy world has been penetrated by U.S. intelligence. That’s the implication of the extraordinarily detailed 29-page indictment of 12 Russian military intelligence (GRU) officers handed up by special counsel Robert S. Mueller III’s investigators on Friday. The 11-count charge includes names, dates, unit assignments, the GRU’s use of “X-agent” malware, its bitcoin covert funding schemes and a wealth of other tradecraft.

Read more here.