Comparison Overview
H&R Block

H&R Block
One H&R Block Way, Kansas City, 64105, US
Last Update: 31/03/2026
H&R Block’s purpose is simple: To provide help and inspire confidence in our clients and communities everywhere. We’ve been true to that purpose since brothers Henry and Richard Bloch founded our company in 1955. Since then, we’ve prepared approximately 800 million tax ...

Trader Joe's
800 S. Shamrock Ave, Monrovia, 91017-7149, US
Last Update: 02/04/2026
Trader Joe’s is a national chain of neighborhood grocery stores. We are committed to providing our customers outstanding value in the form of the best quality products at the best everyday prices. Through our rewarding products and knowledgeable, friendly Crew Members, ...
Compliance Ranges Comparison

H&R Block







Trader Joe's






Benchmark & Cyber Underwriting Signals
Incidents vs Retail Industry Avg (This Year)
No incidents recorded for H&R Block in 2026.
Incidents vs Retail Industry Avg (This Year)
No incidents recorded for Trader Joe's in 2026.
Incident History - H&R Block (X = Date, Y = Severity)
H&R Block cyber incidents detection timeline including parent company and subsidiaries.
Incident History - Trader Joe's (X = Date, Y = Severity)
Trader Joe's cyber incidents detection timeline including parent company and subsidiaries.
Notable Incidents

H&R Block

Trader Joe's
FAQ
Latest Global CVEs
An authentication bypass vulnerability exists in certain releases of Ciena Navigator Network Control Suite (NCS), Manage Control Plan (MCP), and Blue Planet products. The issue is caused by improper handling of HTTP request paths and headers, which allows an unauthenticated attacker to manipulate requests in a manner that bypasses authentication and associated audit logging controls.
In Ciena's Navigator Network Control Suite (NCS) and Manage Control Plan (MCP), there are hidden system accounts used for internal software operations. Some of these accounts have default passwords that may be predictable. While these accounts have very limited permissions on their own, an attacker could combine an attack using one of these accounts with other potential weaknesses to launch a more significant attack, possibly leading to escalation of privilege on the system.
Buffer Overflow vulnerability in OpenHTJ2K v.0.18.4 and before allows an attacker to execute arbitrary code via the openhtj2k_decoder_impl::invoke, invoke_line_based, invoke_line_based_stream, and invoke_line_based_predecoded function in source/core/interface/decoder.cpp
Buffer Overflow vulnerability in OpenHTJ2K v.0.18.4 and before allows an attacker to execute arbitrary code via the j2k_precinct_subband::parse_packet_header() in source/core/coding/coding_units.cpp
Incorrect access control in the /api/License/deactivateOffline endpoint of CAXPerts UniversalPlantViewer WebServices Server v2.7.6 allows authenticated attackers with low-level privileges to cause a Denial of Service (DoS) via removing the license from the webserver.