IT Security Newsletter

IT Security Newsletter - 7/28/2026

Written by Cadre | Tue, Jul 28, 2026

Ernst & Young data breach claimed by ShinyHunters extortion gang

The ShinyHunters extortion gang has claimed responsibility for a recently disclosed Ernst & Young data breach, saying it obtained credentials for some of the company's systems via a supply-chain attack. Ernst & Young disclosed the breach earlier this month, saying a third-party support ticket system used by its IT personnel was compromised and support tickets that may contain client tax information were stolen. READ MORE...

Origin Energy Data Breach Affects 900,000 Australians

Australian power company Origin Energy Limited said the recent data breach affects 900,000 current and former customers. Origin Energy, which has roughly 4.8 million customers, is one of Australia's largest electricity and gas retailers. The company recently started investigating a cybersecurity incident and determined that threat actors gained access to customer data, including names, dates of birth, phone numbers, addresses, account information, and more. READ MORE...

Arista patches actively exploited VeloCloud bug as CISA puts admins on the clock

A critical flaw in Arista's VeloCloud Orchestrator has gone from zero to KEV in short order, with the networking giant confirming attackers are already exploiting it. The vulnerability, tracked as CVE-2026-16812, carries a maximum CVSS score of 10.0 and affects VeloCloud Orchestrator On-Prem, the self-hosted version of the software that enterprises use to centrally manage VeloCloud software-defined wide area networks (SD-WANs) connecting branch offices, datacenters, and clouds environments. READ MORE...

Microsoft Defender for Endpoint leaves some Linux boxes defenseless after update

Not content with broken Windows updates, Microsoft has disclosed two problems with Defender for Endpoint on Linux - one that could disable the security service after a reboot, and another that prevents updates on FIPS-enabled Red Hat Enterprise Linux 8 and 9. The more serious problem affected versions 101.26042.0000 through 101.26042.0009 across all supported Linux operating systems. READ MORE...

Over 24,000 exposed server BMCs leak password hash via decades-old flaw

More than 24,000 internet-exposed servers are leaking authentication password hashes due to a 20-year-old vulnerability in their Baseboard Management Controller (BMC) interface. For at least a third of them, researchers were able to find the correct password using dictionaries and the patterns on factory stickers for default credentials. The exposed servers are vulnerable to CVE-2013-4786, an IPMI 2.0 authentication weakness rooted in a protocol introduced in 2004. READ MORE...

Unpatched Fastjson Vulnerability Exploited in Attacks

Threat actors have been exploiting a critical-severity remote code execution (RCE) vulnerability in Fastjson, security researchers warn. A popular JSON processing library for Java, Fastjson was developed by Alibaba for JSON serialization and deserialization. Tracked as CVE-2026-16723 (CVSS score of 9), the unauthenticated bug impacts all deployments running as a Spring Boot executable fat-jar, which is the most widely used deployment model. READ MORE...

  • ...in 1866, English children's writer and illustrator Beatrix Potter ("The Tale of Peter Rabbit") is born in London.
  • ...in 1868, the 14th Amendment to the U.S. Constitution is adopted, granting citizenship to all persons born in the U.S., as well as due process and equal protection under the law.
  • ...in 1929, First Lady and publishing editor Jacqueline Kennedy Onassis (nee Jacqueline Bouvier) is born in Southampton, NY.
  • ...in 1984, the 23rd Summer Olympics officially opens in Los Angeles.