Blog | Holm Security | Cyberattacks & exploits (2)

March 17, 2023 — Cyberattacks & exploits Microsoft Outlook zero-day vulnerability CVE-2023-23397 exploited Threat Advisory: Holm Security is urging all customers and partners to update Microsoft Outlook after the discovery of a critical vulnerability, CVE-202323397, in the email client that cybercriminals are actively exploiting in the wild. We will be updating...

December 16, 2022 — Cyberattacks & exploits Critical vulnerability in FortiOS

Overview FortiOS SSL-VPN doesn't validate HTTP requests properly, leading to an overflow...

October 31, 2022 — Cyberattacks & exploits OpenSSL update to fix critical vulnerability

OpenSSL has categorized the issue as critical, a designation it uses to indicate a...

April 1, 2022 — Cyberattacks & exploits Spring4Shell: zero-day vulnerability in Spring Framework

General information Two RCEs exist and three vectors are being discussed online (one of...

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December 14, 2021 — Cyberattacks & exploits How to remediate the Log4j 2 vulnerability

This vulnerability can allow an attacker to gain complete control over entire systems if exploited on a server. Any system that could be exploited should be...

October 3, 2019 — Cyberattacks & exploits Are you protected against malware attacks?

At Holm Security, we provide solutions for vulnerability assessment. In meetings with our customers, we sometimes discuss previous incidents that could've...

August 29, 2019 — Cyberattacks & exploits How a cyber weapon is made

The delivery mechanism This part of the cyber weapon ensures it hits its target - or reaches the right client, hardware, or network. The delivery can be done...

June 17, 2019 — Cyberattacks & exploits How cybercriminals use legitimate-looking domains to attack you

May 22, 2019 — Cyberattacks & exploits The Hydro-Attack cost 350 Million – this is how it happened!

Today, not all systems are running yet and they estimated that it may take several months before they are up and running again. The attack probably started as...

March 8, 2019 — Cyberattacks & exploits The 1177 leak could have easily been avoided

According to Stefan Thelberg, security expert and CEO at Holm Security, the 1177 leak could have easily been avoided if basic security measures had been in...