April 30, 2024by Cybersixgill IQ

LockBit Ransomware Strikes US Finance Agency through a Third-Party IT Vendor

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In a recent cyberattack that sent shockwaves through the financial sector, the notorious LockBit ransomware group successfully targeted a prominent US finance agency - the D.C. Department of Insurance, Securities and Banking (DISB). What made this attack particularly alarming was the fact that it was executed through a third-party IT vendor, highlighting the growing risks associated with supply chain cyber attacks. This write-up delves into the details of the incident, shedding light on the impact, modus operandi, and implications of the LockBit attack on DISB.

The Attack

On an unspecified date, the US finance agency D.C. Department of Insurance, Securities and Banking (DISB) fell victim to a sophisticated cyberattack orchestrated by the LockBit ransomware group. The attack exploited vulnerabilities in the agency's network infrastructure, compromising sensitive financial data and disrupting critical operations. What made this incident even more concerning was the fact that the attack was initiated through a third-party IT vendor, highlighting the need for robust supply chain security measures and companies’ managing supply chain risk.

Modus Operandi

LockBit, a prominent ransomware-as-a-service (RaaS) group, is known for its double extortion tactics, where they not only encrypt victims' data but also threaten to leak it if the ransom demands are not met. The group primarily targets organizations in various sectors, including finance, entertainment, utilities, and pharmaceuticals. LockBit gained notoriety with the launch of LockBit 2.0 RaaS in June 2021, which significantly increased its popularity and effectiveness.

In this particular attack, LockBit leveraged a vulnerability in the third-party IT vendor's systems to gain unauthorized access to the finance agency's network. Once inside, the ransomware group deployed its malicious payload, encrypting critical files and rendering them inaccessible. Simultaneously, LockBit exfiltrated sensitive data, creating additional leverage to extort the finance agency.

Implications and Impact

The attack on DISB through a third-party IT vendor raises serious concerns about the security of supply chains. It highlights the need for organizations to thoroughly vet and monitor their vendors' cybersecurity practices to prevent such incidents. The compromise of a trusted vendor can have far-reaching consequences, as it provides attackers with a direct pathway into the target organization's network.

The impact of the LockBit attack on the finance agency was significant. The encryption of critical files disrupted operations, leading to financial losses and potential reputational damage. Moreover, the exfiltration of sensitive data poses a severe threat to the agency's clients and stakeholders, potentially exposing them to identity theft and other malicious activities.

Response and Mitigation

Upon discovering the attack, the finance agency swiftly activated its incident response plan, isolating affected systems and initiating a thorough investigation. The agency collaborated with cybersecurity experts and law enforcement agencies to mitigate the impact and identify the perpetrators behind the attack. Additionally, the agency engaged in communication with affected clients and stakeholders, providing guidance on potential risks and precautionary measures.

Lessons Learned

The LockBit attack on DISB serves as a stark reminder of the evolving threats in cybersecurity and the need for robust cybersecurity measures. Organizations must prioritize supply chain risk management, conducting thorough assessments of their vendors' cybersecurity practices and implementing stringent controls. Regular vulnerability assessments, network segmentation, and employee training are crucial in preventing and mitigating the impact of such attacks.


The LockBit ransomware attack on a prominent US finance agency through a third-party IT vendor underscores the growing risks associated with supply chain attacks. This incident serves as a wake-up call for organizations to strengthen their cybersecurity posture, particularly in vetting and monitoring their vendors. The finance agency's swift response and collaboration with cybersecurity experts and law enforcement agencies demonstrate the importance of proactive incident response and mitigation strategies. As the threat landscape continues to evolve, organizations must remain vigilant and proactive in defending against sophisticated cyberattacks like LockBit.


lockbit - Taken from Cybersixgill’s proprietary threat entity data

Hackers threaten to release Trump documents from Georgia case if they don’t get a ransom by Thursday“ from news_yahoo, published on February 28th, 2024 by Business Insider

LockBit leaks expose nearly 200 affiliates and bespoke data-stealing malware“ from cybernews_theregister, published on February 21st, 2024 by Connor Jones

U.S. Offers $15 Million Bounty to Hunt Down LockBit Ransomware Leaders“ from cybernews_thehackersnews, published on February 22nd, 2024 by Feb

This article was created using Cybersixgill IQ, our generative AI capability that supports teams with instant report writing, simplifies complex threat data and provides 24/7 assistance, transforming cybersecurity for every industry and every individual, at every level.

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