MalwareTechnologyInformationRansomwareData EncryptedCustomer Data InvolvedGovernment IDIdentity (basic)Financial accountMediumContained

Semtech (formerly Sierra Wireless)

bd_e3f3a53d88c73958 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 20, 2021

Filed

Oct 22, 2021

To disclose

31 weeks

Affected

4state residents only

Linked

5 filings

Confidence

66%

Full breach record for Semtech (formerly Sierra Wireless) →2 incidents on file

Sierra Wireless, Inc. notified the New Hampshire Attorney General on October 22, 2021, of a ransomware incident affecting its internal IT systems. Unauthorized access occurred between January 12, 2021, and March 20, 2021. The breach compromised the personal information of four New Hampshire residents, including names, Social Security numbers, and financial account numbers. Sierra engaged a cybersecurity firm, notified law enforcement, and provided 24 months of credit monitoring to affected individuals.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 67 days

discovery → filing · 31 weeks / 216 days

Jan 12, 2021

Begins

Mar 20, 2021

Discovered

Oct 22, 2021

Filed

vs. sector median

+12 wks slower

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Montana State AGbd_205bf88d01e5a6b42021-10-22Candidate
Massachusetts State AGbd_4d92ca9f8d36cca62021-10-22Verified
Indiana State AGbd_674efbbb5dddad142021-10-22Verified
Maine State AGbd_758ddb96f3573bd32021-10-22Verified

Name: Norton Rose Fulbright US LLP
norm: norton rose fulbright us

Name: Semtech (formerly Sierra Wireless)
norm: semtech formerly sierra wireless
Domain: sierrawireless.com
Industry: Technologyllm

Discovered: Mar 20, 2021
Breach occurred: Jan 12, 2021 – Mar 20, 2021
Undetected for: 67 daysoccurrence → discovery
Materiality determined: —
Notification sent: Oct 22, 2021
Affected individuals: 4state-resident count only
Data types: Government IDIdentity (basic)Financial account
Data elements: Social Security number
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for Impact
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Attorney General's Consumer Protection Bureau

During the incident: Took steps to secure its systems
Launched an investigation
A leading cybersecurity firm was engaged to assist
Notified law enforcement
Changes made: Implemented additional security measures designed to enhance the security of its network, systems, and data
Enhancing its security and monitoring tools with an added layer of protection to detect and identify malicious activity and assist in cleaning any potentially compromised systems
Offering 24 months of complimentary credit monitoring and fraud protection services from TransUnion
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 31 weeks(216 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Montana State AGOct 22 · first

Massachusetts State AGOct 22 · first

Indiana State AGOct 22 · first

Maine State AGOct 22 · first

New Hampshire State AGOct 22 · first · 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://mm.nh.gov/files/uploads/doj/remote-docs/sierra-wireless-20211022.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 22, 2021
Raw hash: 15117f94697c5900f233c8cb0d6a2e309d9ad0bc3f7d7c20f1d8996b5367ca96

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityNorton Rose Fulbright US LLP

Victim entitySemtech (formerly Sierra Wireless)

Incidentdiscovered Mar 20, 2021

Stated responseTook steps to secure its systems

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov