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Microsoft Sentinel SOC 101: How to Detect and Mitigate Inactive Account Sign-ins with Microsoft Sentinel

Rod’s Blog • 59 implied HN points • 05 Feb 24
🕹 Technology Security Detection Mitigation Data Analysis
  1. Microsoft Sentinel helps in detecting and mitigating inactive account sign-ins by collecting and analyzing sign-in logs from Microsoft Entra ID using the Kusto Query Language.
  2. To mitigate inactive account sign-ins, actions include investigating the source, blocking or disabling the account, resetting credentials, and educating users on security best practices.
  3. Best practices for managing inactive accounts in Microsoft Entra ID include defining a policy for account lifecycle, implementing provisioning and deprovisioning processes, monitoring account activity, and educating users.

Microsoft Sentinel SOC 101: How to Detect and Mitigate Login Attempts Using Legacy Auth with Microsoft Sentinel

Rod’s Blog • 119 implied HN points • 24 Oct 23
🕹 Technology Security Authentication Management Monitoring Mitigation
  1. Legacy authentication poses a significant security risk as it makes it easier for attackers to compromise user accounts.
  2. Microsoft Entra ID recommends disabling legacy authentication to improve security.
  3. Microsoft Sentinel can help detect and mitigate login attempts using legacy authentication by analyzing sign-in logs, creating alerts, and taking appropriate actions.

Microsoft Sentinel SOC 101: How to Detect and Mitigate Keylogger Attacks with Microsoft Sentinel

Rod’s Blog • 59 implied HN points • 02 Oct 23
🕹 Technology Cybersecurity AI Malware Detection Mitigation
  1. Keyloggers are commonly used by cybercriminals to steal sensitive data, so it's crucial for organizations to detect and mitigate keylogger attacks to safeguard their information and finances.
  2. Microsoft Sentinel, a cloud-native SIEM system, can help in detecting keylogger attacks by collecting logs from endpoints, analyzing them using advanced analytics, and providing tools to investigate alerts and respond to threats.
  3. To mitigate keylogger attacks, organizations can implement multi-factor authentication, educate users about keylogger risks, and utilize endpoint protection software like Microsoft Defender for Endpoint.

Must Learn AI Security Part 1: Prompt Injection Attacks Against AI

Rod’s Blog • 79 implied HN points • 01 Aug 23
🕹 Technology AI Security Data Protection Monitoring Mitigation
  1. Prompts are crucial for AI as they shape the output of language models by providing initial context and instructions.
  2. Prompt injection attacks occur when malicious prompts are used to manipulate AI systems, leading to biased outputs, data poisoning, evasion, model exploitation, or adversarial attacks.
  3. To defend against prompt injection attacks, implement measures like input validation, monitoring, regular updates, user education, secure training, and content filtering.
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Must Learn AI Security Part 11: Denial-of-Service Attacks Against AI

Rod’s Blog • 39 implied HN points • 11 Sep 23
🕹 Technology Security AI Mitigation Monitoring
  1. Denial-of-Service (DoS) attacks against AI aim to overwhelm the system with requests, computations, or data, making it slow, crash, or become unresponsive.
  2. Common techniques used in DoS attacks against AI include request flooding, adversarial examples, amplification attacks, and exploiting vulnerabilities in the system.
  3. Effects of a DoS attack on an AI system can lead to unavailability, loss of productivity, financial loss, reputation damage, and increased security costs for the affected organization.

Test Week: Scale and Speed

Joshua Gans' Newsletter • 0 implied HN points • 19 Aug 20
🏥 Health & Wellness Testing Costs Mitigation Strategy
  1. Widespread testing for Covid-19 requires cheap tests and fast results to isolate infected individuals quickly.
  2. Lowering costs and increasing speed of testing are essential for successful mitigation of Covid-19 spread.
  3. Using a strategic testing approach, combining low-cost, rapid tests with high sensitivity tests, can significantly enhance the effectiveness of mitigation strategies.