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Microsoft Patch Tuesday, May 2021 Edition

Krebs on Security

By all accounts, the most pressing priority this month is CVE-2021-31166 , a Windows 10 and Windows Server flaw which allows an unauthenticated attacker to remotely execute malicious code at the operating system level. 5, 2021 to Microsoft was in Exchange Server.

Wireless 315
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Ghost Ransomware a Persistent Global Threat to Critical Infrastructure

SecureWorld News

Ghost ransomware actors, identified as operating from China, have been targeting unpatched systems and stolen credentials to infiltrate networks, encrypt data, and demand ransom payments. Prioritize fixing vulnerabilities exploited by Ghost, such as ProxyShell (CVE-2021-34473, CVE-2021-34523, CVE-2021-31207).

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From Sensors to Servers: End-to-End Security for IoT in Critical Utility Networks

SecureWorld News

In 2021, for example, hackers attempted to manipulate the chemical levels in a Florida water treatment plant by breaching remote access systems. Strong authentication: Each device, no matter how small, should have strong, unique authentication measures to prevent unauthorized access.

IoT 100
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New Hive ransomware variant is written in Rust and use improved encryption method

Security Affairs

Hive ransomware operators have improved their file-encrypting module by migrating to Rust language and adopting a more sophisticated encryption method. According to a report published by blockchain analytics company Chainalysis, the Hive ransomware is one of the top 10 ransomware strains by revenue in 2021. key files.

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Protecting Oil and Gas Industry Infrastructure: Strategies for Resilience

SecureWorld News

Multi-factor authentication (MFA): MFA ensures that access to critical systems is granted only after verifying user credentials through multiple channels. Hackers used compromised credentials to gain access to Colonial Pipeline's network, deploying ransomware that encrypted critical systems.

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American Water Shuts Down Services After Cybersecurity Breach

eSecurity Planet

While American Water has not disclosed the exact method of attack, such incidents often involve tactics like ransomware or phishing , where hackers gain access to sensitive systems and either steal or encrypt data, demanding a ransom in return for restoring access.

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LastPass: Password Manager Review for 2021

eSecurity Planet

Two unique features that LastPass offers are support for multi-factor authentication (MFA) and single sign-on (SSO). With MFA, your IT administrators can configure an extra layer of authentication that combines biometric technology with contextual intelligence. Also read: Dashlane vs LastPass: Compare Top Password Managers for 2021.