secwatch.observer — SEC 8-K summary
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Issuer:     TECOGEN INC. (TGEN)
CIK:        0001537435
Form:       8-K
Filed at:   2023-05-03T23:59:59+00:00
Accession:  0001537435-23-000036
Event type: cyber
Sentiment:  negative
Materiality: 0.65
Item codes: 8.01
LLM model:  deepseek-v4-flash:cloud@v2

Tecogen discloses ransomware attack on April 28; network restored by May 1
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- Attack was a spear phishing attempt via the company's VPN; traces found on two workstations.
- Hard disks of affected workstations permanently removed; files restored from prior evening's backup.
- Network fully operational by May 1, 2023; all passwords changed and user accounts audited.
- VPN access disabled pending implementation of multi-factor authentication for network and workstations.
- Company reviewing improved cyber threat protection software and hardware solutions.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1537435/000153743523000036/0001537435-23-000036-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1537435/000153743523000036/tgen-20230503.htm
  HTML page:      https://secwatch.observer/filing/0001537435-23-000036

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