secwatch / observer

Recent Cybersecurity 8-K events

Recent 8-Ks about cybersecurity incidents, remediation, customer impact, and incident updates.

50 recent filings JSON RSS

June 25, 2026, 4:52 PM ET RVRF River Financial Corp negative materiality 0.70

River Financial discloses ransomware attack; investigation ongoing, impact undetermined

JSON Markdown SEC source
June 23, 2026, 5:10 PM ET EGHT 8X8 INC /DE/ negative materiality 0.65

8x8 discloses cyber breach via Klue Labs Salesforce integration; customer data exfiltrated

JSON Markdown SEC source
June 15, 2026, 4:30 PM ET IRTC iRhythm Holdings, Inc. negative materiality 0.75

iRhythm discloses cyber incident with data exfiltration; threat actor demanded payment

JSON Markdown SEC source
June 9, 2026, 8:30 AM ET BPOP POPULAR, INC. negative materiality 0.50

Popular Inc. reports Evertec data breach affecting BPPR customer debit card info

JSON Markdown SEC source
June 9, 2026, 8:28 AM ET EVTC EVERTEC, Inc. negative materiality 0.65

EVERTEC discloses data breach via third-party platform; payment card info exposed

JSON Markdown SEC source
May 22, 2026, 4:30 PM ET TOI Oncology Institute, Inc. negative materiality 0.70

Oncology Institute patient data accessed in Vendor cybersecurity incident; operations sustained

JSON Markdown SEC source
May 20, 2026, 4:04 PM ET WST WEST PHARMACEUTICAL SERVICES INC neutral materiality 0.60

West Pharmaceutical provides update on May 4 cyberattack; fully operational, no material financial impact

JSON Markdown SEC source
May 11, 2026, 5:06 PM ET WST WEST PHARMACEUTICAL SERVICES INC negative materiality 1.00

West Pharmaceuticals discloses material cyberattack; data exfiltrated, systems encrypted on May 4 2026

JSON Markdown SEC source
May 11, 2026, 4:15 PM ET CBFV CB Financial Services, Inc. negative materiality 0.90

CB Financial Services discloses material cyber incident exposing customer SSNs and DOBs

JSON Markdown SEC source
May 8, 2026, 7:59 PM ET SAIL SailPoint, Inc. neutral materiality 0.35

SailPoint detects unauthorized GitHub access on April 20; no customer data compromised

JSON Markdown SEC source
May 1, 2026, 7:59 PM ET ITRI ITRON, INC. negative materiality 0.50

Itron provides update on April 13 cyber incident; no further unauthorized activity observed

JSON Markdown SEC source
April 27, 2026, 7:59 PM ET MMED MiniMed Group, Inc. negative materiality 0.50

MiniMed parent Medtronic discloses unauthorized third-party data access; MiniMed IT not compromised

JSON Markdown SEC source
April 27, 2026, 7:59 PM ET MDT Medtronic plc negative materiality 0.65

Medtronic discloses unauthorized access to corporate IT systems; no patient or product impact found

JSON Markdown SEC source
April 24, 2026, 7:59 PM ET ITRI ITRON, INC. negative materiality 0.60

Itron reports unauthorized third-party access to systems; investigation ongoing, operations continue

JSON Markdown SEC source
April 24, 2026, 7:59 PM ET ADT ADT Inc. negative materiality 0.55

ADT reports unauthorized cloud access; limited customer data accessed, no material impact expected

JSON Markdown SEC source
April 13, 2026, 7:59 PM ET RICK RCI HOSPITALITY HOLDINGS, INC. negative materiality 0.70

RCI Hospitality discloses cybersecurity incident; contractor PII accessed, no customer data breached

JSON Markdown SEC source
April 9, 2026, 7:59 PM ET SYK STRYKER CORP negative materiality 0.85

Stryker says cyber incident materially impacted Q1 operations and financial results; full-year guidance unchanged

JSON Markdown SEC source
April 8, 2026, 7:59 PM ET BTM Bitcoin Depot Inc. negative materiality 0.75

Bitcoin Depot loses ~50.9 BTC ($3.7M) in cybersecurity incident; deems event material

JSON Markdown SEC source
April 1, 2026, 7:59 PM ET HAS HASBRO, INC. negative materiality 0.70

Hasbro reports unauthorized network access on March 28, 2026; systems taken offline

JSON Markdown SEC source
March 27, 2026, 7:59 PM ET CCLD CareCloud, Inc. negative materiality 0.75

CareCloud reports cybersecurity incident affecting patient data in one EHR environment

JSON Markdown SEC source
March 23, 2026, 7:59 PM ET SYK STRYKER CORP negative materiality 0.70

Stryker updates cyber incident: contained, no customer data accessed per Unit 42

JSON Markdown SEC source
March 23, 2026, 7:59 PM ET HFWA HERITAGE FINANCIAL CORP /WA/ negative materiality 0.55

Heritage Financial detects cyber incident; files exfiltrated may contain personal info

JSON Markdown SEC source
March 20, 2026, 7:59 PM ET TRT TRIO-TECH INTERNATIONAL negative materiality 0.60

Trio-Tech reports ransomware incident at Singapore subsidiary; data potentially exposed

JSON Markdown SEC source
March 12, 2026, 7:59 PM ET SYK STRYKER CORP negative materiality 0.75

Stryker updates on cyber incident: operations disrupted, patient services unaffected

JSON Markdown SEC source
March 11, 2026, 7:59 PM ET SYK STRYKER CORP negative materiality 0.65

Stryker reports global cybersecurity incident affecting Microsoft systems; investigation ongoing

JSON Markdown SEC source
February 24, 2026, 6:59 PM ET UFPT UFP TECHNOLOGIES INC negative materiality 0.65

UFP Technologies detects cyber incident; data exfiltrated, systems mostly restored

JSON Markdown SEC source
February 3, 2026, 6:59 PM ET WYTC WYTEC INTERNATIONAL INC negative materiality 0.30

Wytec International updates on cybersecurity incident; website defaced twice, now restored

JSON Markdown SEC source
December 29, 2025, 6:59 PM ET CPNG Coupang, Inc. negative materiality 0.90

Coupang confirms 33M accounts accessed in cyber breach; to issue $1.2B in customer vouchers

JSON Markdown SEC source
December 16, 2025, 6:59 PM ET CPNG Coupang, Inc. negative materiality 0.85

Coupang discloses data breach affecting up to 33M customer accounts; former employee accessed personal data

JSON Markdown SEC source
December 2, 2025, 6:59 PM ET PXED Phoenix Education Partners, Inc. negative materiality 0.70

Phoenix Education Partners reports cybersecurity incident; personal data of numerous individuals accessed

JSON Markdown SEC source
November 14, 2025, 6:59 PM ET LOGI LOGITECH INTERNATIONAL S.A. negative materiality 0.60

Logitech reports data exfiltration via zero-day vulnerability in third-party software

JSON Markdown SEC source
November 6, 2025, 6:59 PM ET TOI Oncology Institute, Inc. negative materiality 0.30

Oncology Institute discloses cyber incident impacting fee-for-service collections

JSON Markdown SEC source
October 21, 2025, 7:59 PM ET JCTC JEWETT CAMERON TRADING CO LTD negative materiality 0.75

Jewett-Cameron discloses cyber incident with data exfiltration and extortion demand

JSON Markdown SEC source
October 15, 2025, 7:59 PM ET FFIV F5, INC. negative materiality 0.75

F5 discloses nation-state cyber breach; BIG-IP source code exfiltrated; director resigns for new role

JSON Markdown SEC source
October 6, 2025, 7:59 PM ET BKTI BK Technologies Corp negative materiality 0.55

BK Technologies detects cybersecurity incident; employee data potentially accessed

JSON Markdown SEC source
September 29, 2025, 7:59 PM ET VIPZ VIP Play, Inc. negative materiality 0.40

VIP Play software defect caused $200K unauthorized player withdrawals

JSON Markdown SEC source
September 24, 2025, 7:59 PM ET RTX RTX Corp negative materiality 0.60

RTX discloses ransomware incident on MUSE airport passenger processing software

JSON Markdown SEC source
September 23, 2025, 7:59 PM ET BYD BOYD GAMING CORP negative materiality 0.60

Boyd Gaming reports data breach: unauthorized party accessed IT system, removed employee info

JSON Markdown SEC source
September 17, 2025, 7:59 PM ET PROSPER MARKETPLACE, INC negative materiality 0.60

Prosper Marketplace reports cyber breach; SSNs obtained; investigation ongoing

JSON Markdown SEC source
September 10, 2025, 7:59 PM ET DAIO DATA I/O CORP negative materiality 0.65

Data I/O provides update on ransomware incident; costs estimated at $388K

JSON Markdown SEC source
September 2, 2025, 7:59 PM ET EVTC EVERTEC, Inc. negative materiality 0.85

Evertric subsidiary Sinqia hacked; ~R$710M unauthorized Pix transactions, BCB halts processing

JSON Markdown SEC source
August 29, 2025, 7:59 PM ET WYTC WYTEC INTERNATIONAL INC negative materiality 0.70

Wytec International reports cybersecurity incident; website defaced twice, seminar canceled

JSON Markdown SEC source
August 21, 2025, 7:59 PM ET DAIO DATA I/O CORP negative materiality 0.65

Data I/O reports ransomware incident on Aug 16; operations temporarily impacted

JSON Markdown SEC source
August 18, 2025, 7:59 PM ET NOTV Inotiv, Inc. negative materiality 0.75

Inotiv reports ransomware attack encrypting systems; business operations disrupted

JSON Markdown SEC source
July 7, 2025, 7:59 PM ET ERIE ERIE INDEMNITY CO positive materiality 0.60

Erie Indemnity resumes full ops after cyber incident; no data breach found

JSON Markdown SEC source
July 7, 2025, 7:59 PM ET INGM Ingram Micro Holding Corp negative materiality 0.80

Ingram Micro discloses ransomware attack on internal systems; systems taken offline

JSON Markdown SEC source
July 2, 2025, 7:59 PM ET SURMODICS INC negative materiality 0.55

Surmodics discovers unauthorized access to IT systems on June 5; no material customer impact

JSON Markdown SEC source
June 27, 2025, 7:59 PM ET ALK ALASKA AIR GROUP, INC. negative materiality 0.65

Alaska Air subsidiary Hawaiian Airlines hit by cybersecurity incident on June 23

JSON Markdown SEC source
June 26, 2025, 7:59 PM ET UNFI UNITED NATURAL FOODS INC negative materiality 0.75

UNFI says cyber incident contained; expects material Q4 impact on net income/EBITDA

JSON Markdown SEC source
June 20, 2025, 7:59 PM ET NUE NUCOR CORP negative materiality 0.45

Nucor updates on May 2025 cyber incident; operations restored, no material impact

JSON Markdown SEC source