Aircraft Leasing Company Acknowledges Cyberattack in SEC Filing

Black Basta ransomware claimed responsibility, but the company says its investigation is ongoing.

Commercial aircraft engine leasing concern Willis Lease Finance Corp. said a cybersecurity incident it suffered from Jan. 31 knocked its systems offline
in a filing
with the Securities and Exchange Commission.
The filing notes that unauthorized activity was discovered on the companys IT systems, which led to the launch of an investigation to assess the scope and nature of the cyber incident.
This investigation remains ongoing and is being conducted alongside third-party cybersecurity experts; Willis has not identified who was behind the unauthorized activity at the time of its Feb. 9 filing.
But in early January, the
Black Basta ransomware
group
allegedly claimed to have stolen data
from the business and posted it on the groups leak blog.
The Black Basta group
claims that it stole 910GB of company data related to the aviation companys customers, staff, and HR department, among other data types, and posted samples of documents online.
Willis said in its filing that it is working diligently to respond to and address the issues posed by the incident, but it provided no further details and didnt say if any data has been compromised.

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Aircraft Leasing Company Acknowledges Cyberattack in SEC Filing