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Microsoft Patch Tuesday, November 2023 Edition

Krebs on Security

Microsoft today released updates to fix more than five dozen security holes in its Windows operating systems and related software, including three “zero day” vulnerabilities that Microsoft warns are already being exploited in active attacks.

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Malicious Office 365 Apps Are the Ultimate Insiders

Krebs on Security

Phishers targeting Microsoft Office 365 users increasingly are turning to specialized links that take users to their organization’s own email login page. “Of those who got attacked, about 22 percent — or one in five — were successfully compromised,” Kalember said.

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Ingenious Phishing Tactics in the Modern Scammer's Toolbox

SecureWorld News

From a cybercriminal's perspective, the rationale behind prioritizing these attacks is that they are both lucrative and fairly easy to execute, even more so if the theme of a fraudulent email pulls the right strings in a recipient's mind. However, online fraudsters keep contriving methods to bypass these barriers.

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Intercepting MFA. Phishing and Adversary in The Middle attacks

Pen Test Partners

3 of my last 5 business email compromise investigations have involved an Adversary in The Middle (AiTM) attack. Even the more security-aware people with bolstered Microsoft 365 (M365) configurations are coming up blank as to how their comprehensive MFA policies have been bypassed.

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Achieving PCI DSS Compliant Firewalls within a Small Business

Security Boulevard

The most important and integral part of any data security begins with having firewalls installed in the environment. Not just that, installing firewalls is an essential requirement of the Payment Card Industry Data Security Standard (PCI DSS ). This helps facilitates better accountability for the security of the CDE.

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Attacks against machine learning — an overview

Elie

This blog post survey the attacks techniques that target AI (artificial intelligence) systems and how to protect against them. At a high level, attacks against classifiers can be broken down into three types: Adversarial inputs. Data poisoning attacks. competitor content or as part of revenge attacks). first post.

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Microsoft Breach?—?What Happened? What Should Azure Admins Do?

Security Boulevard

In this blog post, I will explain the attack path “Midnight Blizzard” used and what Azure admins and defenders should do to protect themselves from similar attacks. The Attack Path Step 0: The adversary used password guessing to gain initial access into a “test” tenant. What Should Azure Admins Do?