https://techcrunch.com/2018/09/20/adguard-resets-all-user-passwords-after-account-hacks/ > Popular ad-blocker AdGuard has forcibly reset all of its users’ passwords after it detected hackers trying to break into accounts. > The company said it “detected continuous attempts to login to AdGuard accounts from suspicious IP addresses which belong to various servers across the globe,” in what appeared to be a credential stuffing attack. That’s when hackers take lists of stolen usernames and passwords and try them on other sites.