Wikileaks has published details of what it says are wide-ranging hacking tools used by the CIA.
The alleged cyber-weapons are said to include malware that targets Windows, Android, iOS, OSX and Linux computers as well as internet routers, reports the BBC.
Some of the software is reported to have been developed in-house, but the UK's MI5 agency is said to have helped build a spyware attack for Samsung TVs.
A spokesman for the CIA would not confirm the details.
“We do not comment on the authenticity or content of purported intelligence documents,” he said.
Wikileaks said that its source had shared the details with it to prompt a debate into whether the CIA's hacking capabilities had exceeded its mandated powers.
BBC's security correspondent Gordon Corera says these latest leaks - which appear to give details of highly sensitive technical methods - will be a huge problem for the CIA.
There is the embarrassment factor - that an agency whose job is to steal other people's secrets has not been able to keep their own.
Then there will be the fear of a loss of intelligence coverage against their targets who may change their behavior because they now know what the spies can do.
And then there will be the questions over whether the CIA’s technical capabilities were too expansive and too secret.
Because many of the initial documents point to capabilities targeting consumer devices, the hardest questions may revolve around what is known as the "equities" problem.
BDST: 1126 HRS, MAR 08, 2017
SR