19th May 2026 Cyber Update: Exchange Zero-Day Puts On-Prem Mail Servers Back in the Spotlight
Microsoft has confirmed active exploitation of CVE-2026-42897, putting exposed on-prem Exchange and Outlook Web Access environments back under pressure.
Sydney-based fintech youX has confirmed a massive data breach exposing the personal and financial details of 444,538 Australian borrowers. An unsecured database left 141GB of data, including loan applications, driver's licences, and residential addresses, accessible for at least 10 months.
A critical pre‑authentication remote code execution flaw in BeyondTrust’s Remote Support and Privileged Remote Access allows unauthenticated attackers to run arbitrary commands on exposed appliances, enabling full system compromise and broad lateral movement.
Dutch telecom Odido confirms major cyberattack breached 6.2 million customers' personal data including names, addresses, bank account numbers details sparking serious identity theft concerns across the Netherlands
Australian firm FIIG Securities has been ordered to pay a $2.5 million penalty by the Federal Court following ASIC action over significant cybersecurity failures that led to a major data breach in 2023. The landmark case sets a new precedent for cyber resilience obligations for AFS licensees.
German insurance major HanseMerkur has been targeted by the Russia-aligned Dragonforce ransomware gang, which claims to have stolen 97GB of data. The attack on the €3 billion firm highlights the escalating threat of ransomware to the global financial services and insurance sectors.
The CL0P ransomware gang has breached Podiatry WA, a key Australian healthcare association, as part of a massive 22-victim global attack wave. The incident highlights the escalating threat of data extortion targeting professional services and healthcare sectors across Australia.
Microsoft has issued an emergency patch for a high-severity zero-day vulnerability (CVE-2026-21509) in Microsoft Office. The flaw, which bypasses key security features, is being actively exploited in targeted attacks, posing a significant risk to organizations globally, including in Australia.
Nike is investigating a massive data breach after the WorldLeaks ransomware group claimed to have stolen 1.4TB of sensitive data, including Jordan Brand design files, supply chain details, and internal documents. The breach poses a significant threat to Nike's IP operations in Australia.
The Everest ransomware group has breached ASRock Rack, a major server hardware vendor, stealing 509GB of sensitive data including firmware, BIOS, and other critical files. The breach creates a significant supply chain risk, potentially allowing attackers to embed vulnerabilities in server hardware.
Japanese automaker Nissan is the latest victim of the Everest ransomware group, which claims to have stolen 900GB of sensitive data. The breach, announced January 10, threatens internal records, dealer info, and possibly customer data —raising serious concerns for its Australian operations.
The Victorian Department of Education has confirmed a major data breach affecting all 1700+ government schools. Hackers accessed the names, emails, and encrypted passwords of current and former students, impacting potentially hundreds of thousands of individuals just weeks before the new school year
Australian car rental insurer Prosura has suffered a major data breach, exposing the personal and policy information of an estimated 300,000 customers. Attackers are now selling the stolen data identity data on a public forum after the company reportedly failed to meet their demands.
Where cybersecurity meets innovation, the CNC team delivers AI and tech breakthroughs for our digital future. We analyze incidents, data, and insights to keep you informed, secure, and ahead. Sign up for free!