The silent “Storm”: New infostealer hijacks sessions, decrypts server-side

BleepingComputer

April 13, 2026 at 2:05 PM

Actively Exploited

Overview

A new infostealer called 'Storm' has emerged, capable of hijacking user sessions by decrypting data on the server side rather than locally. This technique allows attackers to bypass traditional security measures like passwords and multi-factor authentication (MFA). Researchers from Varonis have demonstrated how the infostealer sends sensitive browser data directly to the attackers' servers, raising significant concerns about user privacy and account security. The implications are serious, as organizations relying on standard security protocols may find themselves vulnerable to these sophisticated attacks. Companies should be vigilant and assess their security measures to protect against this evolving threat.

Key Takeaways

Active Exploitation: This vulnerability is being actively exploited by attackers. Immediate action is recommended.
Affected Systems: Web browsers and online accounts that rely on session management and MFA.
Action Required: Implement enhanced security measures such as stronger session management, continuous monitoring of user sessions, and consider additional layers of authentication beyond MFA.
Timeline: Newly disclosed

Original Article Summary

New "Storm" infostealer skips local decryption, sending browser data to attacker servers. Varonis shows how server-side decryption enables session hijacking, bypassing passwords and MFA. [...]

Impact

Web browsers and online accounts that rely on session management and MFA.

Exploitation Status

This vulnerability is confirmed to be actively exploited by attackers in real-world attacks. Organizations should prioritize patching or implementing workarounds immediately.

Timeline

Newly disclosed

Remediation

Implement enhanced security measures such as stronger session management, continuous monitoring of user sessions, and consider additional layers of authentication beyond MFA.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to Data Breach, Malware.

Read Original Article

Related Coverage

ZionSiphon Malware Targets ICS in Water Facilities

SecurityWeek

A new malware known as ZionSiphon is specifically designed to target industrial control systems (ICS) at water facilities in Israel. This malware is aimed at water treatment and desalination plants, posing a significant risk to critical infrastructure. The targeting of such facilities raises serious concerns about the potential disruption of essential services and the safety of water supplies. As cyber threats to critical infrastructure continue to evolve, this incident serves as a reminder of the vulnerabilities faced by essential services in maintaining security against cyber attacks. Organizations operating these facilities need to enhance their cybersecurity measures to protect against such targeted threats.

Apr 17, 2026

Man gets 30 months for selling thousands of hacked DraftKings accounts

BleepingComputer

Kamerin Stokes, a 23-year-old from Memphis, has been sentenced to 30 months in prison for his role in selling access to thousands of hacked DraftKings accounts. Authorities found that he had gained unauthorized access to these accounts and was selling them online. This incident raises concerns about the security of online gambling platforms and the potential risks to users' personal information and finances. The case serves as a reminder of the importance of strong security measures in protecting sensitive data, especially in the digital space where vulnerabilities can be exploited easily. Stokes' actions not only affected individual users but also posed a threat to the integrity of the DraftKings platform itself.

Apr 17, 2026

53 DDoS Domains Taken Down by Law Enforcement

SecurityWeek

Law enforcement agencies from 21 countries have successfully dismantled 53 domains linked to DDoS-for-hire services. This coordinated action aimed to disrupt operations that allow individuals or groups to launch distributed denial-of-service attacks on targeted websites, effectively overwhelming them with traffic. DDoS attacks can cripple businesses, disrupt services, and lead to significant financial losses. By targeting these domains, authorities are sending a strong message against cybercriminal activities and attempting to reduce the availability of these illicit services. This operation reflects a growing international effort to combat online crime and protect organizations from such disruptive attacks.

Apr 17, 2026

Operation PowerOFF Seizes 53 DDoS Domains, Exposes 3 Million Criminal Accounts

The Hacker News

Operation PowerOFF is an international law enforcement initiative that has successfully dismantled 53 domains linked to commercial distributed denial-of-service (DDoS) services. This operation led to the arrest of four individuals and exposed over 3 million accounts belonging to cybercriminals. These DDoS-for-hire services were reportedly utilized by more than 75,000 users, highlighting the scale of the issue. By disrupting access to these services and taking down their supporting infrastructure, authorities aim to reduce the prevalence of DDoS attacks, which can severely impact businesses and online services. The operation is part of a broader effort to combat cybercrime and enhance online security.

Apr 17, 2026

Social media bans might steer kids into riskier corners of the internet

Help Net Security

Governments are increasingly banning social media access for children under 16 to protect their safety online. Australia was the first to implement such a ban, prompting discussions in other countries about similar measures. However, these restrictions raise significant concerns about privacy, as enforcing age checks may require collecting more personal data from minors. Critics argue that this could inadvertently expose children to riskier areas of the internet, counteracting the intended safety benefits. As policymakers weigh these decisions, the balance between privacy and protection remains a contentious issue for parents, lawmakers, and tech companies alike.

Apr 17, 2026

US nationals sentenced for aiding North Korea’s tech worker scheme

CyberScoop

Kejia Wang and Zhenxing Wang, two U.S. nationals, have been sentenced for their roles in a scheme that aided North Korean operatives in securing jobs with over 100 American companies. They created shell companies and operated laptop farms to facilitate this process, which allowed North Korean workers to bypass U.S. employment regulations. The actions of the Wangs not only undermined U.S. labor laws but also raised national security concerns by potentially enabling North Korea to access sensitive technologies and information. This case illustrates the risks of foreign interference in U.S. job markets and highlights the importance of vigilance in monitoring employment practices to protect against such schemes.

Apr 16, 2026