Just days after Sony brought its PlayStation Network back to life after one of the biggest online security breaches in history, the company may have another problem on its hands.

Sony has blocked user logins on all PlayStation Websites after reports began to circulate on gaming sites and on hacker message boards about an exploit — essentially, a hole or oversight in the system’s security that hackers can use to gain access — that could allow third-parties to take control of user accounts.

Read more at CNBC.com