A huge number of Gmail accounts lockout the users and they were asked to re-enter their login details to login again. Google has transparently denied such claims and expressed that it has nothing to do with phishing scam or security dangers. The issue is not restricted to any single platform of Gmail users, when such an enormous number of clients face a comparative issue, confusion will surely stir. Google: “We can assure you that the security of your account was never in danger as a result of this issue”]
Source: https://gbhackers.com/gmail-account-signed-unexpectedly-todaywhat-happened/