HackingFinancial ServicesFinanceVulnerability ExploitZero-DayData ExfiltratedSupply Chain (3P Vendor)Customer Data InvolvedIdentity (basic)Government IDCriticalContained

Sun Life Assurance Company of Canada

bd_500b8c615d2fdb8f · schema v1 · pii pii-v1

Severity

Critical

Discovered

Jun 22, 2023

Filed

Aug 23, 2023

To disclose

9 weeks

Affected · nationwide

212,1294,097 in this filing

Linked

4 filings

Confidence

68%

Full breach record for Sun Life Assurance Company of Canada →5 incidents on file

Sun Life Assurance Company of Canada reports a supplemental breach involving third-party vendor Pension Benefit Information, LLC (PBI). A threat actor exploited a zero-day vulnerability in Progress Software's MOVEit Transfer software to access PBI's servers on May 29-30, 2023, exfiltrating names, SSNs, and DOBs. Sun Life was notified on June 22, 2023. Final affected count is 212,129 individuals (4,097 in WA). Notifications sent August 21, 2023, including 24 months of credit monitoring.

J jump to incidentP pin to compareR raw source

Washington clock⏱ WA AG >30d9 weeks discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 24 days

discovery → filing · 9 weeks / 62 days

May 29, 2023

Begins

Jun 22, 2023

Discovered

Aug 23, 2023

Filed

vs. sector median

on median

This filing is one of 4 about the same incident.View merged incident

Part of Pension Benefit Information, LLC supply-chain incident (2023) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Oregon State AGbd_9f15b58e2b3344f62023-08-23Verified
Hawaii State AGbd_9fd1580b816758ab2023-08-22 · +1dCandidate
California State AGbd_69b02d7eb4f6f7832023-08-21 · +2dVerified

Name: Sun Life Assurance Company of Canada
norm: sun life assurance company of canada

Name: Sun Life Assurance Company of Canada
norm: sun life assurance company of canada
Industry: Financial Servicesllm

Discovered: Jun 22, 2023
Breach occurred: May 29, 2023 – May 30, 2023
Undetected for: 24 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 21, 2023
Affected individuals: 212,129state + nationwide
Data types: Identity (basic)Government ID
Data elements: NameSocial Security numberDate of birth
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 1-99dexposure 1-99d
WA-stated discovery: Found after the fact
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 ChannelT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Provided notice to the Office of the Attorney General of WashingtonProviding notice of this incident to appropriate agencies in other jurisdictions
Third party: via Pension Benefit Information, LLC
Initial access: exploit_public_facing

During the incident: Engaged its internal Cybersecurity Incident Management process
Assigned a cross functional team to lead the internal investigation
Engaged outside legal counsel
Blocked its link to PBI
Sent notification letters to the affected individuals
Offered credit monitoring and identity theft protection services for at least twenty four (24) months
Changes made: PBI installed the required security patches provided by Progress Software
PBI conducted its own forensics investigation
PBI engaged an independent forensics firm
PBI enhanced its safeguards for data, including setting new rules for deletion of data from its instance of the software
Reviewing and enhancing information security policies and procedures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(62 days from discovery to filing)
Compliance flags: WA AG >30d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

California State AGAug 21 · first

Hawaii State AG+1d

Oregon State AG+2d

Washington State AG+2d · this page

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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA26294.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 23, 2023
Raw hash: 053072831a064d5bb629a2876f6484724cdf425e223f38e66372a0a52aa89ef9

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entitySun Life Assurance Company of Canada

Victim entitySun Life Assurance Company of Canada

Incidentdiscovered Jun 22, 2023

Stated responseEngaged its internal Cybersecurity Incident Management process

ComplianceWA AG >30d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com