Cisco has confirmed data Yanluowang ransomware gang published on its leak site was indeed stolen from the firm during the May cyberattack.
The firm’s network was breached after hackers compromised an employee's VPN account. Even so, the tech giant affirms the leak has no impact on its business, as originally assessed.
RELATED RESOURCE
Escape the ransomware maze
Conventional endpoint protection tools just aren’t the best defence anymore
According to the company, the stolen records comprised non-sensitive files from the employee’s Box folder. However, the attack was contained before Yanluowang ransomware could start encrypting systems.
“On September 11, 2022, the bad actors who previously published a list of file names from this security incident to the dark web, posted the actual contents of the same files to the same location on the dark web. The content of these files match what we already identified and disclosed,” explained Cisco.
“Our previous analysis of this incident remains unchanged-we continue to see no impact to our business, including Cisco products or services, sensitive customer data or sensitive employee information, intellectual property, or supply chain operations.”
In stark contrast, hackers responsible for the attack claimed 55GB worth of files had been compromised, including classified documents, schematics, and source code.
As matters stand, the claims remain unverifiable. Cisco, on the other hand, disqualified the possibility of source code being exfiltrated.
-
Bigger salaries, more burnout: Is the CISO role in crisis?In-depth CISOs are more stressed than ever before – but why is this and what can be done?
-
Cheap cyber crime kits can be bought on the dark web for less than $25News Research from NordVPN shows phishing kits are now widely available on the dark web and via messaging apps like Telegram, and are often selling for less than $25.
-
‘Phishing kits are a force multiplier': Cheap cyber crime kits can be bought on the dark web for less than $25 – and experts warn it’s lowering the barrier of entry for amateur hackers
News Research from NordVPN shows phishing kits are now widely available on the dark web and via messaging apps like Telegram, and are often selling for less than $25.
-
Healthcare systems are rife with exploits — and ransomware gangs have noticedNews Nearly nine-in-ten healthcare organizations have medical devices that are vulnerable to exploits, and ransomware groups are taking notice.
-
Alleged LockBit developer extradited to the USNews A Russian-Israeli man has been extradited to the US amid accusations of being a key LockBit ransomware developer.
-
February was the worst month on record for ransomware attacks – and one threat group had a field dayNews February 2025 was the worst month on record for the number of ransomware attacks, according to new research from Bitdefender.
-
CISA issues warning over Medusa ransomware after 300 victims from critical sectors impactedNews The Medusa ransomware as a Service operation compromised twice as many organizations at the start of 2025 compared to 2024
-
Warning issued over prolific 'Ghost' ransomware groupNews The Ghost ransomware group is known to act fast and exploit vulnerabilities in public-facing appliances
-
The Zservers takedown is another big win for law enforcementNews LockBit has been dealt another blow by law enforcement after Dutch police took 127 of its servers offline
-
There’s a new ransomware player on the scene: the ‘BlackLock’ group has become one of the most prolific operators in the cyber crime industry – and researchers warn it’s only going to get worse for potential victimsNews Security experts have warned the BlackLock group could become the most active ransomware operator in 2025
