Another week, another ransomware outbreak. On Tuesday, we saw another variant of ransomware spreading, worm-style, across unsecured networks within large organisations. As with the WannaCry outbreak in May, large global corporations have been affected, and infections have spread from their initially-compromised hosts across internal networks. NotPetya hasn't received as much press as WannaCry did, but from a security perspective it does, at the moment, look far more interesting.
Another ransomware attack hits, this time on a scale never seen before. The spread has gone viral across a large and crucial network – the network underpinning the UK's National Health Service.
There are three main differences between this attack and previous ransomware incidents.
Over the last 12 months, ransomware has rapidly become one of the most prevalent information security threats to a vast number of organisations of any size, as well as the individual consumer. It is a highly lucrative opportunity for criminals and is claiming a growing list of victims. Indeed, at Cyberis, we have experienced a significant upward trend in incident response services and requests for our advice due to ransomware events.