Enlarge (credit: Getty Images ) Hackers backed by the North Korean government gained a major win when Microsoft left a Windows zero-day unpatched for six months after learning it was under active exploitation. Even after Microsoft patched the vulnerability last month, the company made no mention that the North Korean …

Malicious hackers are targeting people in the cryptocurrency space in attacks that start with a link added to the target’s calendar at Calendly, a popular application for scheduling appointments and meetings. The attackers impersonate established cryptocurrency investors and ask to schedule a video conference call. But clicking the …