Social EngineeringProfessional ServicesProfessional ServicesPhishingStolen CredentialsCustomer Data InvolvedTargetedIdentity (basic)Government IDFinancial accountMediumContained

Posternak Blankstein & Lund LLP

bd_80b374bc47950692 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 29, 2018

Filed

Sep 4, 2018

To disclose

10 weeks

Affected

3state residents only

Linked

3 filings

Confidence

67%

Full breach record for Posternak Blankstein & Lund LLP →

Posternak Blankstein & Lund, LLP notified the NH Attorney General of a phishing incident where an unauthorized party accessed an employee's email account. The incident affected 3 New Hampshire residents, exposing names, SSNs, and financial account/routing numbers. Posternak engaged forensic investigators, secured the account, and offered 1 year of credit monitoring.

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Incident timeline

discovery → filing · 10 weeks / 67 days

Jun 29, 2018

Discovered

Sep 4, 2018

Filed

vs. sector median

10 wks faster

This filing is one of 3 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Massachusetts State AGbd_4162cb91643dc2d32018-08-31 · +4dVerified
New Hampshire State AGbd_75b06d293f98e21b2018-11-01 · +58dCandidate

Name: BAKER & HOSTETLER LLP
norm: baker hostetler

Name: Posternak Blankstein & Lund LLP
norm: posternak blankstein lund
Industry: Professional Servicesllm

Discovered: Jun 29, 2018
Materiality determined: —
Notification sent: Aug 31, 2018
Affected individuals: 3state-resident count only
Data types: Identity (basic)Government IDFinancial account
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: Secured and enhanced security for the employee account
Changed the account password
Commenced an internal investigation
Engaged a professional forensic security firm to assist with the investigation
Began mailing written notifications to potentially affected individuals
Offering eligible individuals a complimentary one-year membership in credit monitoring and identity theft protection services through Experian
Changes made: Enhance its existing network and email security
Providing continued training to their employees on data security and the dangers of phishing emails
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 10 weeks(67 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 2 states

View merged incident ↗

Massachusetts State AGAug 31 · first

New Hampshire State AG+4d · this page

New Hampshire State AG+62d

Pattern: first filing Aug 31 (MA), last Nov 1 (NH) — a 62-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/posternak-20180904.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 4, 2018
Raw hash: 2254ba579a46919456a283d568fdae080e36e3a4d1ff5405dc54eb414338ca1f

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityBAKER & HOSTETLER LLP

Victim entityPosternak Blankstein & Lund LLP

Incidentdiscovered Jun 29, 2018

Stated responseSecured and enhanced security for the employee account

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov