"Cloudbleed" is the term being used to refer to an Internet security nightmare. Earlier this week, Cloudflare, a web performance company that provides security services to hundreds of thousands of domains such as Fitbit, OkCupid, and Uber, revealed that it was affected by a serious bug that exposed data from some of the sites that use it.
Information from one site using Cloudflare's services could have ended up embedded on another. The cause of the exposed data — a faulty piece of code — has since been fixed, and Cloudflare says that it has "not discovered any evidence of malicious exploits of the bug or other reports of its existence."
Still, if you have an account of any of the websites that use Cloudflare, it's worth taking the safe road and changing your password. Cloudflare has not revealed which domains suffered from the memory leak, except for confirming that 1Password, a password manager, was not affected.