When more than 20 local governments in Texas were hit this summer by ransomware in one day. The attack was apparently tracked back to one thing the organizations had in common: a managed service provider. With limited IT resources of their own, local governments have increasingly turned to MSPs to operate significant portions of their networks and applications, as have other organizations and businesses—often placing critical parts of their business operations in the MSPs' hands. And that has made MSPs a very attractive target to ransomware operators.
Threat researchers at the global cloud security provider Armor have been tracking publicly-reported incidents in which MSP and cloud service providers have been hit with ransomware. Thus far, they have documented 13 such incidents this year—with 6 of them reported in the past few months.
The most recent publicly exposed victim is Billtrust, which as security journalist Brian Krebs reported, was hit by what BleepingComputer reported was BitPaymer ransomware (a report that has not been confirmed). BillTrust is an online invoicing and billing provider based in New Jersey that also provides credit decision services. Billtrust executives sent an email to customers on October 22, informing them of the attack, stating: