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B. Riley Financial

brileyfinancial.com
CONFIRMED

Official SEC Form 8-K Item 1.05 disclosure filed by B. Riley Financial regarding a material cybersecurity incident.

Observable Status CONFIRMED
Industry / Sector Technology & Commercial
Incident Classification Material Cybersecurity Incident
Attributed Threat Actor Unattributed / Unknown
Affected Population Scope Under Audit
First Seen 2024-04-08
Last Updated 2024-04-08
OPEN WEIGHTS TELEMETRY • DETERMINISTIC CONFIDENCE

Confidence & Source Corroboration

80% CONFIDENCE
1. Primary Authority CONFIRMED BY REGULATOR Base weight: 65%
2. Evidence Specificity +15% Statutory Filing Verified
3. Corroboration Curve +0% 1 independent domain
4. Timeline & Staleness +0% 1 milestone logged
Corroborated Source Domains:
sec.gov
STATUTORY REGULATORY DISCLOSURES

Official Regulatory Filings & Legal Compliance Records

1 Verified Statutory Filing
Regulatory Ground Truth Standard: The disclosures below represent formal statutory filings and enforcement records submitted to government regulatory authorities (SEC, State Attorneys General, HHS OCR, FTC, FCC, EU/UK DPAs). In accordance with repository principles, this data is captured exactly as filed by the reporting entity and is never modified, overridden, or synthesized by AI models.
SEC

Form 8-K Item 1.05

CONFIRMED BY REGULATOR
Docket / Accession ID 0001213900-24-031252
Statutory Filing Date 2024-04-08
Disclosed Impact Scope Under Audit
Evidence Standard Regulatory Ground Truth
Statutory Filing Details & Summary (Preserved As Filed):

Item
1.05 Material Cybersecurity Incidents

On April 5, 2024, Targus International,
LLC and certain affiliates (collectively, "Targus"), each of which is an indirect subsidiary of B. Riley Financial, Inc. (the
"Company"), discovered that a threat actor gained unauthorized access to certain of Targus' file systems. Upon discovery
and with assistance from external cybersecurity counsel and consultants, Targus immediately activated its incident response and business
continuity protocols to investigate, contain and remediate the incident. Through this process, proactive containment measures to disrupt
unauthorized access resulted in a temporary interruption in the business operations of the Targus network.

The incident has been contained
and Targus systems recovery efforts are in process.

While the investigation is
ongoing and the incident has temporarily disrupted Targus' business operations, as of the date of this filing, the Company does
not currently believe that this incident will materially impact the Company's financial condition or results of operations taken
as a whole. Business operations for each of the Company's other subsidiaries have continued without disruption in all material respects,
and no other Company business has been affected. Last year, Targus was not a significant contributor to the Company's Operating
Adjusted EBITDA.

Targus has notified relevant
regulatory authorities and will work with law enforcement with respect to the unauthorized access to information.

Forward-looking statements

This Current Report on Form
8-K contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements other
than statements of historical fact are forward-looking statements. These forward-looking statements involve known and unknown risks, uncertainties
and other factors which may cause the Company's performance or achievements to be materially different from any expected future
results, performance, or achievements. Forward-looking statements speak only as of the date they are made and the Company assumes no duty
to update forward-looking statements, except as required by law. Actual future results, performance or achievements may differ materially
from historical results or those anticipated depending on a variety of factors, some of which are beyond the control of the Company, including,
but not limited to, the risks described from time to time in the Company's periodic filings with the SEC, including, without limitation,
the risks described in the Company's 2022 Annual Report on Form 10-K under the captions "Risk Factors" and "Management's
Discussion and Analysis of Financial Condition and Results of Operations" (as applicable). Additional information will be set forth
in the Company's Annual Report on Form 10-K for the year ended 2023. These factors should be considered carefully, and readers are
cautioned not to place undue reliance on such forward-looking statements. All information is current as of the date this press release
is issued, and the Company undertakes no duty to update this information.

1

View Official Regulatory Filing Document https://www.sec.gov/Archives/edgar/data/1464790/000121390024031252/0001213900-24-031252-index.htm

Technical Forensic Briefing

Incident Overview

B. Riley Financial, within its operating sector, has been subject to a cybersecurity incident disclosed to federal securities regulators. Ground-truth telemetry indicates the event prompted statutory disclosure under SEC cybersecurity reporting mandates.

Official SEC Form 8-K Item 1.05 disclosure filed by B. Riley Financial regarding a material cybersecurity incident.

Compromised Assets & Data Scope

The specific volume of affected customer, employee, or organizational records remains under active technical audit or disclosed in primary filings. Primary online perimeter and corporate domains include brileyfinancial.com.

Specific classes of compromised records, infrastructure, or operational systems are detailed in the official statutory filings below.

Statutory Disclosures & Compliance

  • SEC Filing: Form 8-K Item 1.05 (0001213900-24-031252) - Filing Link

Milestone Timeline (1 events logged)

2024-04-08 16:00 UTC
CONFIRMED BY REGULATOR

SEC Form 8-K Item 1.05 Disclosure

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