Kryptos
Since Oct 8, 2025, Kryptos has listed 5 organizations on its leak site.
Listings per month
- Total listings
- 5
- First listing
- Oct 8, 2025
- Latest listing
- Nov 6, 2025
- MITRE ATT&CK techniques
- 0
Kryptos is a small ransomware group first observed in October 2025, conducting simultaneous attacks across North America and Oceania on its debut day with a focus on professional, technical, and legal service sectors, with only 3 known documented victims.
It posted no listings in the last 12 months.
Most targeted country: Sri Lanka, with 1 listings (20% of the total).
Most targeted sector: Other, with 1 listings (20% of the total).
Targeted countries
Showing 5 of 5 results
What does a ransomware group do?
Ransomware groups break into corporate networks, move data out and encrypt systems. If the ransom is not paid, they list the organization on a leak site and threaten to publish the data.
What should you do if your organization is listed on a leak site?
- Record the listing and any published sample files; do not visit the leak site from the corporate network.
- Isolate affected systems and preserve logs without deleting them.
- Determine which data left the organization; if personal data is involved, review notification obligations with your legal team.
- Make any decision about the ransom demand together with legal, management and incident response.
- Do not bring systems back online before the attacker’s entry point is closed.
Is your organization mentioned?
Search with your domain to check whether your organization appears in ransomware listings, leaked records, forums and Telegram channels.
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