CYBERSECURITYTRACKER
Incidents

Atomsilo

Review this actor's tracked leak-site claims, published reporting, and attributed threat evidence.

ransomware5 leak-site claims, all timeLatest observed leak-site post 2026-02-24

Portable threat brief

Atomsilo

Facts from stored data only; no AI-written text.

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Executive facts

Actor
Atomsilo
Kind
ransomware
Latest observed
2026-02-24
Leak-site claims
5
Catalogued techniques
0

Scope

Tracked sectors
Financial Services, Pharmaceuticals & Life Sciences
Claim records
2021-12-21 to 2026-02-24

Vulnerability events linked to this group

No dated vulnerability events are attached to this group's linked vulnerabilities.

Verified techniques

No verified ATT&CK mapping for this group.

Defensive actions

No defensive actions are attached to this profile.

Ransomware claim data is unverified: RansomLook (CC BY 4.0).

Most-claimed sectorsFinancial ServicesPharmaceuticals & Life Sciences
Activity window in this site's data

This is only the dates observed by this site. It is not this actor's lifetime or evidence of dormancy outside these dates.

Claim records
First observed Latest observed
Verified ATT&CK phases represented

No verified ATT&CK mapping for this group

Origin and motivation

Origin and motivation not attributed.

No MITRE ATT&CK group mapping exists for this actor yet. Mappings here are strict: an actor links to a MITRE group only when the group's own name, aliases, or MITRE-published description match, and MITRE has not catalogued this group. Technique and defensive action data will appear automatically if a verified mapping lands.

Claims posted under this group's name or leak-site brand
5 on this site
View all on Breaches →
Leak-site claim activity

Claims per month, 2021-12 to 2026-02. Peak 4 in 2021-12.

2021-122026-02
Show monthly counts as a table
MonthClaims
2021-124
2022-010
2022-020
2022-030
2022-040
2022-050
2022-060
2022-070
2022-080
2022-090
2022-100
2022-110
2022-120
2023-010
2023-020
2023-030
2023-040
2023-050
2023-060
2023-070
2023-080
2023-090
2023-100
2023-110
2023-120
2024-010
2024-020
2024-030
2024-040
2024-050
2024-060
2024-070
2024-080
2024-090
2024-100
2024-110
2024-120
2025-010
2025-020
2025-030
2025-040
2025-050
2025-060
2025-070
2025-080
2025-090
2025-100
2025-110
2025-120
2026-010
2026-021

0 additional claims without a disclosure date

Ransomware claim data is unverified: RansomLook (CC BY 4.0).

Glossary