Edward Snowden has tweeted his response to WikiLeaks’ massive dump of confidential documents surrounding CIA hacking tools, describing it as “genuinely a big deal.”

Still working through the publication, but what @Wikileaks has here is genuinely a big deal. Looks authentic. — Edward Snowden (@Snowden) March 7, 2017

Snowden, who has lived in exile since he blew the lid off the scale of National Security Agency surveillance in 2013, has been pouring through the cache of more than 8,000 documents, saying that they “show iOS/Android are what got hacked – a much bigger problem.”

PSA: This incorrectly implies CIA hacked these apps / encryption. But the docs show iOS/Android are what got hacked - a much bigger problem. https://t.co/Bw9AkBpOdt — Edward Snowden (@Snowden) March 7, 2017

The former NSA employee is also convinced that the revelations exposed in this latest massive WikiLeaks dump are genuine, tweeting that only a cleared insider could know the names of programs and offices used by the agency.

What makes this look real?

Program & office names, such as the JQJ (IOC) crypt series, are real. Only a cleared insider could know them. — Edward Snowden (@Snowden) March 7, 2017

The whistleblower also claims that this is the first public evidence that the United States government is secretly paying to keep US software unsecured.

If you're writing about the CIA/@Wikileaks story, here's the big deal: first public evidence USG secretly paying to keep US software unsafe. pic.twitter.com/kYi0NC2mOp — Edward Snowden (@Snowden) March 7, 2017

The CIA reports show the USG developing vulnerabilities in US products, then intentionally keeping the holes open. Reckless beyond words. — Edward Snowden (@Snowden) March 7, 2017