Adobe has issued an emergency update on Thursday to its Flash player after researchers discovered a security flaw that was being exploited to deliver ransomware to Windows PCs.

Adobe urgesĀ users of Flash on Windows, Mac, Chrome and Linux computers to update the product as quickly as possible after security researchers said the bug was being exploited in “drive-by” attacks that infect computers with ransomware when tainted websites are visited.

Trend Micro Inc said that it had warned Adobe that it had seen attackers exploiting the flaw to infect computers with a type of ransomware known as ‘Cerber’ as early as March 31.

Cerber “has a ‘voice’ tactic that reads aloud the ransom note to create a sense of urgency and stir users to pay.

Please be very careful what websites you visit, especially those resulting from Google searches!