Sergey Ovsyannikov
No alias recorded
Pleaded guilty
Public record reviewed to August 23, 2026
Index entry last updated August 23, 2026
No role for this person is stated in the public record.
A conviction or guilty plea is recorded in this entry.
Everything on this page comes from cited public sources.
This entry records 1 action across 1 takedown, each traced to a cited source. At least one linked takedown was added in the extended pass and was not independently source verified. Where the record is silent, this page says so rather than filling the gap.
Legal summary
- Associated takedowns
- 3ve ad-fraud botnet disruption
- Recorded role
- Role not stated
- Group segment
- Core operator
- Charging authority
- Not recorded
- Charging jurisdiction
- Not recorded
- Case number
- 18-CR-633 (ERK)
- Latest recorded action
- Pleaded guilty, September 2019
- Nationality
- Kazakhstan
- Country of residence
- Not established
Associated takedowns
Law enforcement actions against infrastructure and services linked to this person, and the action recorded against the person in each one.
Outcomes and dates follow the public reporting cited on the sources tab and are subject to revision.
1 recorded action across 1 takedown
| Date | Takedown | Target | Connection | Outcome |
|---|---|---|---|---|
| September 24, 2019 , Source [1] | 3ve ad-fraud botnet disruption , Malware and botnets | 3ve ("Eve") | Core operator | Pleaded guilty . No further detail published |