Social EngineeringOtherPhishingStolen CredentialsCustomer Data InvolvedDelayed DiscoveryIdentity (basic)Government IDFinancial accountPHIMediumContained

STERICYCLE, INC.

bd_0fac471d72510ed2 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 8, 2020

Filed

Aug 31, 2020

To disclose

21 weeks

Affected

154state residents only

Linked

6 filings

Confidence

66%

Full breach record for STERICYCLE, INC. →2 incidents on file

Stericycle, Inc. notified the NH AG of a phishing incident affecting 154 NH residents. Unauthorized access to employee email accounts occurred between Oct 2019 and Apr 2020. Personal info including SSNs, driver's licenses, and financial data was potentially exposed. No evidence of actual access to specific PII-containing messages was found. Credit monitoring offered.

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Incident timeline

undetected · 190 days

discovery → filing · 21 weeks / 145 days

Oct 1, 2019

Begins

Apr 8, 2020

Discovered

Aug 31, 2020

Filed

vs. sector median

+12 wks slower

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

California State AGbd_9838e91af18ddca82020-08-31Verified
Oregon State AGbd_f8d84c251d9b4cd32020-08-31Verified
Washington State AGbd_272a67efcc47c0cb2020-08-26 · +5dCandidate
Indiana State AGbd_36e73081c3bf149d2020-08-26 · +5dVerified

Show 1 more filing ↓up to 5d gap

Montana State AGbd_c553d7b276f276792020-08-26 · +5dVerified by operator

Name: STERICYCLE, INC.
norm: stericycle

Name: STERICYCLE, INC.
norm: stericycle
Industry: Otherllm

Discovered: Apr 8, 2020
Breach occurred: Oct 1, 2019 – Apr 30, 2020
Undetected for: 190 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 26, 2020
Affected individuals: 154state-resident count only
Data types: Identity (basic)Government IDFinancial accountPHI
Data elements: Social Security number
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Office of the Attorney General
Initial access: phishing_link

During the incident: Launched an investigation into the incident with the assistance of a leading cybersecurity firm
Secured each impacted employee email account
Continued to monitor for suspicious activity
Reviewed and updated its employee email security controls where appropriate
Continued to train its workforce regarding cybersecurity issues
Providing them with access to 24 months of MyIDCareTM credit monitoring and identity protection services at no cost
Changes made: Reviewed and updated its employee email security controls where appropriate
Continued to train its workforce regarding cybersecurity issues
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 21 weeks(145 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Washington State AGAug 26 · first

Indiana State AGAug 26 · first

Montana State AGAug 26 · first

California State AG+5d

Oregon State AG+5d

New Hampshire State AG+5d · this page

Pattern: first filing Aug 26 (WA), last Aug 31 (NH) — a 5-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://mm.nh.gov/files/uploads/doj/remote-docs/stericycle-20200831.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 31, 2020
Raw hash: 8e0632b3584fe4b05e71e9e6835070a49f9771f8ad9abaf9e91eed0f8e45bfa5

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entitySTERICYCLE, INC.

Victim entitySTERICYCLE, INC.

Incidentdiscovered Apr 8, 2020

Stated responseLaunched an investigation into the incident with the assistance of a leading cybersecurity firm

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov