A public spat between Microsoft and an independent security researcher reopens a long-running debate over who is responsible for securing software.

A security researcher published details of three security vulnerabilities in Windows Defender, and the code used to exploit them. Now, hackers are taking advantage of the vulnerabilities in real-life attacks, according to a cybersecurity firm.

Leaked hacking tools threaten the security of millions of older iPhones. Cybersecurity experts weigh in.

Here’s what we know, and what you need to know, about Coruna and DarkSword, two advanced iPhone hacking tools discovered by security researchers. DarkSword has now leaked online.

The former boss of a U.S. hacking tools maker was jailed for selling highly sensitive software exploits to a Russian broker. This is how we first learned of his arrest, reported the story, and some of the unanswered questions we still have.

Peter Williams, the former head of U.S. hacking tools maker L3Harris Trenchant, was sentenced to seven years in prison for stealing and selling his former company’s hacking and surveillance tools to a Russian firm.

The U.S. Treasury announced it was imposing sanctions against a Russian broker of zero-day exploits, its founder and two affiliates, citing a threat to U.S. national security. Another affiliated zero-day broker in the United Arab Emirates was also sanctioned.