`sergey2016@tutamail.com`

sergey2016@tutamail.com is an email address that 2 published sources report in connection with APT38 activity, which public reporting attributes to North Korea (DPRK). It is cited here from SafeDep and Microsoft. The earliest of those reports is dated 2026-06-17 and the most recent 2026-06-18.

email address APT38 MATCHED IN SOURCE

First seen 2026-06-17 · last seen 2026-06-18

Sources

…is close. Indicators of Compromise Accounts and packages npm accounts ehindero ( ehindero2016@tutamail.com ) and sergey2016 ( sergey2016@tutamail.com ) Any @mastra/* package.json with "easy-day-js": "^1.11.21" and no provenance attestations easy-day-js@1.11.22 ( postinstall: node…
Mastra npm Scope Takeover: 143 Packages Drop a RAT - Real-time Open Source Software Supply Chain Security — SafeDep · under “Indicators of Compromise” · published 2026-06-17 · pulled 2026-10-01
…Both the compromised publisher ( ehindero2016@tutamail.com ) and the typosquat publisher ( sergey2016@tutamail.com ) used the same anonymous email provider, Tutamail. Dependency injection: the poisoned package.json The compromised mastra@1.13.1…
From package to postinstall payload: Inside the Mastra npm supply chain compromise by Sapphire Sleet | Microsoft Security Blog — Microsoft · under “Discovery and initial indicators” · published 2026-06-18 · pulled 2026-09-11

Find this indicator in the index, or see every email address this site holds under Email addresses in the browse listing.

Related indicators

Cited by the same report: Mastra npm Scope Takeover: 143 Packages Drop a RAT - Real-time Open Source Software Supply Chain Security

SafeDep lists 6 other indicators in this source.

Cited by the same report: From package to postinstall payload: Inside the Mastra npm supply chain compromise by Sapphire Sleet | Microsoft Security Blog

Microsoft lists 11 other indicators in this source. 6 are shown, chosen across types.

All 12 indicators from this source