Side-channel attack - Attack Type

Threat entity extracted from intelligence sources

Frequency
5
occurrences
First Seen
November 9, 2025
Last Seen
June 16, 2026

Side-channel attack is an attack_type tracked by ThreatCluster, appearing in 4 threat clusters built from 5 intelligence report mentions.

Side-channel attack is a attack_type tracked across 4 threat clusters and 5 intelligence report mentions on ThreatCluster. First observed November 9, 2025; most recent activity June 16, 2026.

Related Threat Clusters

  • Fedora Releases Security Updates for Mojo::JWT to Mitigate Timing Attacks

    On June 7, 2026, Fedora released updates for the perl-Mojo-JWT package in versions 43 and 44 to address vulnerabilities related to timing side-channel attacks in symmetric signatures. These updates improve the security…

    2 articles · Updated June 16, 2026
  • AI Providers Address Metadata Leak Threatening Encrypted Chats

    Microsoft disclosed a new side-channel attack named 'Whisper Leak' that can allow eavesdroppers to infer chat topics despite end-to-end encryption. Major AI chatbot providers, including OpenAI, Microsoft, Mistral, and…

    2 articles · Updated November 9, 2025
  • Microsoft Reveals 'Whisper Leak' Vulnerability in AI Chatbots

    Microsoft has disclosed a new side-channel attack named 'Whisper Leak' that can allow eavesdroppers to infer the topics of conversations with AI chatbots, even when using end-to-end encryption. This vulnerability can be…

    4 articles · Updated November 11, 2025
  • Microsoft Reveals 'Whisper Leak' Vulnerability in AI Chatbots

    Microsoft has disclosed a side-channel attack named 'Whisper Leak' that can expose the topics of conversations with AI chatbots, even when using end-to-end encryption. This vulnerability allows eavesdroppers, including…

    6 articles · Updated November 11, 2025

Recent Intelligence Reports

  • Fedora 44 Perl Mojo-JWT Security Fix Advisory FEDORA-2026 — Linuxsecurity · June 16, 2026
  • Are conversations with AI chatbots safe?Microsoft uncovers a serious flaw that could expose ... — Livemint · November 11, 2025
  • Whisper Leak uses a side channel attack to eavesdrop on encrypted AI conversations — Csoonline · November 10, 2025
  • AI providers plug metadata leak that exposed encrypted chat topics — Itnews.Au · November 9, 2025
  • AI chat privacy at risk: Microsoft details Whisper Leak side — Securityaffairs.Co · November 9, 2025

Frequently asked questions

What is Side-channel attack?

Side-channel attack is an attack_type tracked by ThreatCluster, appearing in 4 threat clusters built from 5 intelligence report mentions.

Is Side-channel attack still active?

The most recent intelligence report mentioning Side-channel attack on ThreatCluster is dated June 16, 2026. Activity was first observed November 9, 2025, giving a tracked span from then to June 16, 2026.

What is Side-channel attack associated with?

Across ThreatCluster reporting, Side-channel attack most frequently co-occurs with Whisper Leak, Fedora, Microsoft, Microsoft Azure, CWE-200 - Exposure of Sensitive Information, among 8 tracked related entities.

What are the latest developments involving Side-channel attack?

The most significant recent cluster is “Fedora Releases Security Updates for Mojo::JWT to Mitigate Timing Attacks” (2 articles · Updated June 16, 2026). Side-channel attack appears across 4 threat clusters in total, listed above with sources.

How much reporting does ThreatCluster have on Side-channel attack?

Side-channel attack appears in 5 intelligence report mentions across 4 deduplicated threat clusters, aggregated from 17,000+ monitored sources.

CVSS v3.1 Breakdown