AtomSilo
Data as of August 16, 2026.
What industries AtomSilo targets
Sector identified for 7 of 9 victims.
| Healthcare | 3 | |
| Manufacturing | 2 | |
| Financial Services | 1 | |
| Real Estate | 1 |
Where the victims are located
Country identified for 8 of 9 victims.
| Brazil | 4 | |
| Lithuania | 2 | |
| United States | 1 | |
| Japan | 1 |
Every AtomSilo victim
| Victim | Sector | Country | Posted |
|---|---|---|---|
| Bank.com bank.com | Financial Services | United States | Feb 25, 2026 |
| Cristália Produtos Químicos Farmacêuticos cristalia.com.br | Healthcare | Brazil | Feb 25, 2026 |
| Eisai eisai.com | Healthcare | Japan | Feb 25, 2026 |
| Light Conversion lightcon.com | Manufacturing | Lithuania | Feb 25, 2026 |
| Tegra Incorporadora tegraincorporadora.com.br | Real Estate | Brazil | Feb 25, 2026 |
| cristalia.com.br | Healthcare | Brazil | Dec 26, 2021 |
| eisaireimbursement.com | Not identified | Not identified | Dec 26, 2021 |
| lightcon.com | Manufacturing | Lithuania | Dec 26, 2021 |
| tegravendas.com.br | Not identified | Brazil | Dec 26, 2021 |
Browse recent data breaches for more.
AtomSilo leak sites
Addresses we've seen AtomSilo publish victims from. Any .onion address needs the Tor Browser.
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AtomSilo questions
Is AtomSilo still active?
It's gone quiet. The last victim we recorded was February 25, 2026, and nothing has appeared since. Groups do go quiet and come back, so we're still watching.
How many victims has AtomSilo claimed?
AtomSilo has named 9 victims on its leak site since we started tracking it. That counts organizations, not leaked files. A single victim often accounts for thousands of published files. 5 of them were posted in the last 12 months.
When did AtomSilo first appear?
The first victim we recorded for AtomSilo was posted on December 26, 2021. That's when the group entered our collection, which isn't necessarily when it started operating.
Which sectors does AtomSilo target?
Healthcare accounts for the most victims we can classify, with 3. Manufacturing follows at 2. We could identify a sector for 7 of 9 victims, so treat this as the shape of the targeting rather than a full census.
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