A notorious hacker, previously involved in high-profile data breaches of InfraGard and Twitter, has now leaked a substantial LinkedIn database on a clear web hacking forum. The scraped LinkedIn database was leaked in two parts: one containing 5 million user…
Tag: Heimdal Security Blog
The Most Common Healthcare Cyberattacks
In the wrong hands, medical data can be used for a variety of crimes, such as patient identity theft, clinician identity theft, extortion, tax fraud, insurance fraud, and more. Geopolitical agendas further complicate the threat landscape, as cyberattacks such as…
Daixin Threat Group Claims Ransomware Attack on 5 Hospitals in Ontario
Daixin Team claimed responsibility for the ransomware attack that impacted 5 hospitals in Ontario, Canada, on October 23rd. TransForm, the shared service provider of the five healthcare organizations, confirmed the ransomware attack. The stolen database contains information on 5.6 million…
Hackers Exploit Atlassian Vulnerabilities for Cerber Ransomware Attacks
Threat groups exploited two recent Atlassian Confluence vulnerabilities to deploy Cerber ransomware. On October 31st, Atlassian released security updates for both flaws and urged users to patch. Both flaws, CVE-2023-22518 and CVE-2023-22515, are ranked 10 which is the maximum risk…
New DDoS Attacks Waves. Cybersecurity Expert Robertino Matausch Explains HTTP/2 Rapid Reset
If you switched from using HTTP/1 to HTTP/2 you`re a possible target of massive DDoS attacks. Hackers started recently to exploit a key feature of the HTTP/2 protocol. The vulnerability was called CVE-2023-44487. The HTTP/2 Rapid Reset DDoS attacks that targeted…
New DDoS Attacks Waves. Cybersecurity Expert Robertino Matausch Explains HTTP/2 Rapid Reset
If you switched from using HTTP/1 to HTTP/2 you`re a possible target of massive DDoS attacks. Hackers started recently to exploit a key feature of the HTTP/2 protocol. The vulnerability was called CVE-2023-44487. The HTTP/2 Rapid Reset DDoS attacks that targeted…
The Threat Is Real. MacOS Patching Keeps Your Apple Safe
Any device that runs code is vulnerable to hacking and so are MacOS machines. They need patching just as any other endpoint. Most Apple users would swear that Macs are immune to viruses and other malware. The truth is they`re…
How To Break The Metrics Mirage in Vulnerability Management
Meet Jeff. He’s the CISO of a mid-sized financial services company – and it’s his job to keep the organization safe from security attacks. Every week, he checks the graphs and dashboards in his SIEM (security information and event management)…
Privilege Overreach, the Lurking PAM Security Threat
Managing privileged access to internal resources is a challenge for organizations worldwide. If left unaddressed, it could lead to data breaches, downtime, and financial loss. Statistics show that 80% of data breaches seem to be caused by misuse of privileged…
Silent Safeguards – The Essence of ISO 27001 Controls
ISO 27001, sometimes referred to as ISO/IEC 27001 is an international standard that addresses organizational information security. Issued in 2005 and with a second revision in 2013, the ISO 27001 standard describes the Information Security Management Systems requirements for global…