Logitech International disclosed a cybersecurity breach on November 14, 2025, attributed with high confidence to the Clop ransomware and extortion group, with the incident reported to the SEC via Form 8-K equivalent filing (logi-20251114) and announced on SIX Swiss Exchange. Clop engaged in extortion activity following the breach; the full scope of exfiltrated data and affected systems has not been publicly disclosed. The primary business risks are data exposure, regulatory scrutiny under applicable securities disclosure obligations, and reputational impact, particularly given Logitech’s enterprise hardware footprint.