email security

Network Security

Issued by: CSO Online

Russian nation-state hackers have exploited a recent Microsoft email compromise to steal the emails of government agencies, the US Cybersecurity and Infrastructure Security Agency (CISA) has reiterated in a new alert. The warning ordered agencies to urgently check their email systems for signs of compromise and report back by April 30 if they believe specific…

Malware & Threats

Issued by: Help Net Security

A research from Tessian, the State of Email Security Report, found that enterprise email is now the No. 1 threat vector for cyberattacks. According to the report, 94% of organizations experienced a spear phishing or impersonation attack, and 92% suffered ransomware attacks over email this year. Organizations send and receive thousands of emails per day,…

Vulnerabilities

Issued by: Security Week

The vulnerability, which carries a CVSS severity score of 7.3/10, is documented as a debugging port misconfiguration that is opened by the Zoom client on macOS machines. Details from Zoom’s advisory: Zoom Client for Meetings for macOS (Standard and for IT Admin) starting with 5.10.6 and prior to 5.12.0 contains a debugging port misconfiguration. When…

Vulnerabilities

Issued by: Security Week

Issues with ECB are not unknown. In its Announcement of Proposal to Revise Special Publication 800-38A, NIST wrote, “The ECB mode encrypts plaintext blocks independently, without randomization; therefore, the inspection of any two ciphertext blocks reveals whether or not the corresponding plaintext blocks are equal… the use of ECB to encrypt confidential information constitutes a…

Malware & Threats

Issued by: Security Week

Also known as Qakbot and Pinkslipbot, QBot is an information stealer with backdoor and self-spreading capabilities that has been around since 2009 and which is often used as the initial infection vector in malicious attacks. Earlier this year, QBot was distributed in attacks exploiting Follina, a Microsoft Support Diagnostic Tool (MSDT) vulnerability tracked as CVE-2022-30190,…

Application Security, Network Security

Issued by: Security Week

On July 15, 2022, threat actors working on behalf of the government of Iran launched a destructive attack targeting the Albanian government’s websites and public services, taking them offline. The attack had less than 10% total impact on the customer environment. The campaign consisted of four different stages, with different actors responsible for every one…

Vulnerabilities

Issued by: Security Week

The security hole, tracked as CVE-2022-27924 and described as a Memcache injection issue, allows an unauthenticated attacker to steal cleartext credentials from a targeted Zimbra instance without any user interaction. An attacker can leverage the compromised credentials to access the victim’s emails, from where they could escalate their access within the targeted organization and obtain…

Malware & Threats

Issued by: Security Week

Initially announced in February, the macro-blocking feature is meant to prevent phishing attacks by making it more difficult for users to enable macros in documents received from the internet. Small snippets of code embedded in Office documents, macros have long been abused by threat actors in phishing attacks and for malware delivery. In 2016, Microsoft…

Malware & Threats

Issued by: Security Week

Red Canary’s 2022 Threat Detection Report (PDF) analyzed more than 30,000 confirmed threats across the firm’s customer base. The report notes that ransomware criminals have responded to improving target company backups by introducing sensitive data exfiltration and the threat of exposure (double extortion). “Backups will allow an organization to get back up and running more…