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Inactive · #24 by victimsRansomware group

Pysa

As of Oct 19, 2026, Pysa has listed 299 confirmed victims on its leak site since Jul 11, 2025, 0.9% of all victims tracked by Brandefense. Its most targeted country is Canada (0.3% of its victims).

Mespinosa is a ransomware which encrypts file using an asymmetric encryption and adds.pysa as file extension. According to dissectingmalware the extension "pysa" is probably derived from the Zanzibari Coin with the same name.

Also known asMespinozaPyza
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Confirmed Victims
299
Rank By Victims
#24
Last Leak-Site Post
Jul 11, 2025
Top Country
Canada
Top Sector
Unknown

Victims Posted Per Month.

Pysa confirmed victims per month
MonthConfirmed victims
July 2025299
August 20250
September 20250
October 20250
November 20250
December 20250
January 20260
February 20260
March 20260
April 20260
May 20260
June 20260
July 20260
August 20260
September 20260
October 2026 (month in progress)0
Updated continuously · figures as of Oct 19, 2026

Latest Pysa Victims.

Search all 299 →
Latest confirmed leak-site victims claimed by Pysa
VictimCountryIndustryData claimedPosted
HABIUnknownUnknownNot stated
Durham RadioCACanadaUnknownNot stated
Campus Sacre Coeur Wien GymnasiumUnknownUnknownNot stated
Assured ImagingUnknownUnknownNot stated
The Skinners Kent AcademyUnknownUnknownNot stated
Kent County CouncilUnknownUnknownNot stated

How They Operate.

Pysa's threat actor profile lists 10 malware and tools, with its targets and related actors.

TTPs, CVEs and malware →

Who Pysa Targets.

Sectors

No data for this window right now.

Countries

  1. CACanada10.3%
Shares are of this group's confirmed victims.

History.


  1. First seen in Brandefense data

  2. Busiest month on record: 299 confirmed victims

  3. First confirmed victim listed on its leak site

  4. Most recent leak-site post

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Figures as of Oct 19, 2026. Confirmed leak-site claims collected by Brandefense technologies and validated by Brandefense analysts.

Listed on a leak site means a ransomware group has claimed the company; it is not a confirmed breach. To request a correction or removal, contact Brandefense.