Security News > 2021 > September > UK VoIP telco receives 'colossal ransom demand', reveals REvil cybercrooks suspected of 'organised' DDoS attacks on UK VoIP companies

Two UK VoIP operators have had their services disrupted over the last couple of days by ongoing, aggressive DDoS attacks.

South Coast-based Voip Unlimited has confirmed it has been slapped with a "Colossal ransom demand" after being hit by a sustained and large-scale DDoS attack it believes originated from the Russian cybercriminal gang REvil.

UK Comms Council - the industry body that represents ITSPs - has informed members of the industry group about the attacks and issued a reminder to adopt "Appropriate DDoS mitigation strategies."

In a statement, he explained: "At 2pm 31st August, Void Unlimited's network was the victim of an alarmingly large and sophisticated DDoS attack attached to a colossal ransom demand."

"UK Comms Council have communicated to us that other UK SIP providers are affected and identified them as a criminal hacking organisation called REvil who appear to be undertaking planned and organised DDoS attacks against VoIP companies in the UK," he said.

In a statement, chair of Comms Council UK Eli Katz told us: "Comms Council UK is aware of the Denial of Service attacks currently targeting IP-based communications service providers in the UK and that a small number of our members have been impacted. We have communicated the issue to our membership and are continuing to liaise closely with them to share further information and support as the situation develops."

News URL

https://go.theregister.com/feed/www.theregister.com/2021/09/02/uk_voip_telcos_revil_ransom/