cybersecuritymicrosoftpatchesransomwaredata breach

Microsoft Patches a Record 570 Security Flaws

July 26, 2026

Back to all posts

Source: Krebs on Security

In an unprecedented move, Microsoft has patched a record 570 security vulnerabilities in its June 2023 Patch Tuesday release. These flaws span various Microsoft products, including Windows, Office, and Exchange Server. The majority of these issues (approximately 61%) are rated 'critical', posing significant risks to data integrity, confidentiality, and system availability. Given the widespread usage of Microsoft products in Canadian businesses, this update is crucial for SMBs to apply promptly to safeguard against potential cyber threats. Failure to do so could expose businesses to ransomware attacks, data breaches, and other malicious activities.
cybersecuritymicrosoftpatchesransomwaredata breach

Concerned about this threat to your business?

We help Canadian SMBs deploy the controls discussed in this article. Free 30-minute assessment — no obligation.

Book a free assessment