Social EngineeringFinancial ServicesFinancePhishingStolen CredentialsCustomer Data InvolvedTargetedIdentity (basic)Government IDFinancial accountMediumContained

Wintrust Mortgage

bd_e6a7b075116e430a · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 31, 2017

Filed

Feb 2, 2018

To disclose

5 weeks

Affected · nationwide

751 in this filing

Confidence

66%

Full breach record for Wintrust Mortgage →3 incidents on file

Wintrust Mortgage notified the NH AG of a phishing attack on an employee in early Dec 2017. The incident exposed customer PII (names, SSNs, DOBs, driver's licenses, financial account numbers) via the compromised email. 75 customers were notified, including 1 NH resident. Wintrust locked the account, investigated, and provided 24 months of credit monitoring.

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Incident timeline

undetected · 30 days

discovery → filing · 5 weeks / 33 days

Dec 1, 2017

Begins

Dec 31, 2017

Discovered

Feb 2, 2018

Filed

vs. sector median

4 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed75 affectedView incident

Name: Wintrust Mortgage
norm: wintrust mortgage

Name: Wintrust Mortgage
norm: wintrust mortgage
Industry: Financial Servicesllm

Discovered: Dec 31, 2017
Breach occurred: Dec 1, 2017 – Dec 31, 2017
Undetected for: 30 daysoccurrence → discovery
Materiality determined: —
Notification sent: Feb 2, 2018
Affected individuals: 75state + nationwide
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security numberDate of birth
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: ExternalFinancial
Regulator citations: Reported the incident to its financial regulators
Initial access: phishing_link

During the incident: Lock down the impacted account
Investigate the incident
Confirm that no other Wintrust systems were affected
Reported the incident to its financial regulators
Providing regular reminders and training for employees on how to spot and avoid being victimized by phishing emails
Changes made: Providing regular reminders and training for employees on how to spot and avoid being victimized by phishing emails in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 5 weeks(33 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

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/wintrust-mortgage-20180202.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 2, 2018
Raw hash: 7f6c98409210b00f6671955ec6c8f9d78142f7d739a2e64d76b5951c015eacc0

Reporting entityWintrust Mortgage

Victim entityWintrust Mortgage

Incidentdiscovered Dec 31, 2017

Stated responseLock down the impacted account

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov