Social EngineeringTechnologyInformationPhishingStolen CredentialsCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDCredentialsMediumContained

TESSERA TECHNOLOGIES INC.

bd_20e372850ebb9f57 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Jun 6, 2019

To disclose

—

Affected

1state residents only

Linked

3 filings

Confidence

66%

Full breach record for TESSERA TECHNOLOGIES INC. →

Tessera Technologies, Inc. notified the NH AG of a phishing incident affecting employee email accounts. Unauthorized access occurred March 11-15, 2019. Data exposed included names, SSNs, DOBs, and credentials. 1 NH resident affected. Notifications sent May 31, 2019.

J jump to incidentP pin to compareR raw source

Incident timeline

Mar 11, 2019

Begins

Jun 6, 2019

Filed

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

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Massachusetts State AGbd_5ac14ccf2c5f7e5f2019-06-05 · +1dVerified
Montana State AGbd_b53ad13bca41c4812019-05-31 · +6dCandidate

Name: TESSERA TECHNOLOGIES INC.
norm: tessera technologies

Name: TESSERA TECHNOLOGIES INC.
norm: tessera technologies
Industry: Technologyllm

Discovered: —
Breach occurred: Mar 11, 2019 – Mar 15, 2019
Materiality determined: —
Notification sent: May 31, 2019
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government IDCredentials
Data elements: Social Security numberDate of birth
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: External
Regulator citations: Notified the Office of the New Hampshire Attorney General
Initial access: phishing_link

During the incident: Retained a third party expert to review the affected email accounts
Secured the relevant email accounts
Offered identity protection and credit monitoring services to affected individuals for two years at no cost
Changes made: Resetting the relevant Xperi accounts' passwords
Monitoring for similar phishing campaigns
Put in place additional security measures to help further protect against phishing attempts
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Montana State AGMay 31 · first

Massachusetts State AG+5d

New Hampshire State AG+6d · this page

Pattern: first filing May 31 (MT), last Jun 6 (NH) — a 6-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/tessera-technologies-20190606.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 6, 2019
Raw hash: c7993a79215ff3bb08bf3dc9f321bd07dbd3bc5fc641b150bec1c91fd6a1ca9a

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityTESSERA TECHNOLOGIES INC.

Victim entityTESSERA TECHNOLOGIES INC.

IncidentPhishing

Stated responseRetained a third party expert to review the affected email accounts

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov