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Cyber Briefing: 2026.04.07

A series of cybersecurity developments highlights escalating threats, from ransomware groups exploiting vulnerabilities and zero-days to data breaches exposing employees and clients across… This article has been indexed from CyberMaterial Read the original article: Cyber Briefing: 2026.04.07

Masjesu Botnet Targets Routers in Commercial DDoS Attacks

Hackers are abusing the Masjesu botnet to run high-volume DDoS-for-hire attacks against routers, gateways, and other exposed IoT infrastructure, turning everyday network hardware into commercial attack firepower. Operating quietly since early 2023 and still active in 2026, Masjesu (also known as XorBot)…

Iranian cyber activity hits US energy, water, and government networks

U.S. government agencies on Tuesday warned American organizations about ongoing cyber activity targeting OT and PLC devices, including those manufactured by Rockwell Automation and Allen-Bradley, across multiple critical infrastructure sectors. The activity has been attributed to Iranian-affiliated APT actors seeking…

How to prepare for SOC 2 penetration testing

For organisations working towards SOC 2, penetration testing is often one of the more visible and scrutinised components of the audit process. While SOC 2 is not prescriptive in how controls must be implemented, it does require clear evidence that…

Chaos malware expands from routers to Linux cloud servers

Chaos, Go-based malware first documented by Lumen’s Black Lotus Labs, has historically targeted routers and edge devices. A new variant observed in March 2026 shows the malware operating against misconfigured Linux cloud servers, a category of infrastructure the botnet had…

GreyNoise Launches C2 Detection for Exploited Edge Devices

GreyNoise has introduced a new capability, C2 Detection, to identify compromised edge devices such as firewalls, routers, and VPN systems assets that are increasingly targeted but often lack visibility in traditional security tools. Unlike endpoints, these devices rarely generate alerts when…

Docker Authorization Bypass Flaw Exposed Hosts to Potential Attackers

A high-severity security vulnerability has been discovered in Docker Engine, exposing hosts to potential authorization bypass attacks. Tracked as CVE-2026-34040, the flaw allows attackers to evade authorization plugins (AuthZ) by manipulating API request bodies. While the base likelihood of exploitation…

Multiple OpenSSL Flaws Expose Sensitive Data in RSA KEM Handling

A newly disclosed flaw in OpenSSL could allow attackers to access sensitive data stored in application memory. Tracked as CVE-2026-31790, this moderate-severity vulnerability affects the handling of RSA Key Encapsulation Mechanism (KEM) RSASVE encapsulation. OpenSSL issued the security advisory on…

Top 10 Best Multi-Factor Authentication (MFA) Providers in 2026

In the digital realm of 2026, the traditional password stands as a flimsy barrier against an onslaught of sophisticated cyber threats. From phishing campaigns and credential stuffing to ever-evolving malware, attackers are relentlessly targeting the weakest link in cybersecurity: single-factor…

Financial cyberthreats in 2025 and the outlook for 2026

In this report, Kaspersky experts share their insights into the 2025 financial threat landscape, including regional statistics and trends in phishing, PC malware, and infostealers. This article has been indexed from Securelist Read the original article: Financial cyberthreats in 2025…