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Incident

Isaac Herzog

Incident posture

Attack window
Oct 2023
Location
Israel
Status
Historical
CIA posture
Available to members
Updated
2026-01-06 18:13

Linked entities

Victim
Isaac Herzog
Threat actors
1 actor
Sources
1 source

Timeline

Occurred
Oct 2023
Discovered
Pending
Disclosed
Pending
Resolved
Pending

Summary

President Isaac Herzog's Telegram account was compromised in a suspected criminal hack, prompting an investigation by Israel's Shin Bet security agency. The breach was contained without information leakage, and control of the account was restored. Cybersecurity experts noted that such attacks often involve phishing techniques to extract sensitive data. This incident occurred amid a series of cyberattacks targeting Israeli institutions, including healthcare providers, universities, and cybersecurity firms, attributed to groups like OilRig and Anonymous Sudan, which hijacked websites and harvested user credentials.

Motives

Detailed motive labels are available to members.

1 motive

TTPs

Detailed technique labels are available to members.

2 techniques

Description

On October 4, 2023, President Isaac Herzog’s Telegram account was compromised in a suspected criminal hacking incident. The President’s Residence publicly disclosed the breach on October 5, confirming Israel’s Shin Bet security agency had assumed control of the investigation. Officials stated the account was restored to the president’s control following the intrusion, emphasizing no sensitive information was believed to have been leaked. While the exact method of compromise was not detailed, cybersecurity expert Dr. Gilad Leibovitch of the Technion highlighted that such attacks typically aim to harvest high-level intelligence through phishing techniques. Leibovitch explained hackers often impersonate trusted entities or mimic official communications from platforms like Telegram to deceive targets into divulging credentials. He noted enabling two-step verification could reduce vulnerability to such exploits. The incident marked a high-profile breach within Israel’s political leadership, though authorities characterized it as isolated and contained.

This event occurred amid a broader pattern of cyberattacks targeting Israeli entities. In late September 2023, Slovak cybersecurity firm ESET revealed Iranian group OilRig had hijacked legitimate websites during 2021-2022 campaigns against Israeli organizations, harvesting browsing histories, cookies, and login credentials. Affected sectors included healthcare, employment portals, and human resources platforms. Separately, in April 2023, hacker collective "Anonymous Sudan" disrupted operations at Check Point, a leading Israeli cybersecurity firm, and temporarily disabled websites of seven major universities, including Tel Aviv University and the Hebrew University of Jerusalem. These distributed denial-of-service attacks caused multi-hour outages, impacting academic and research portals but without reported data exfiltration. The Herzog incident underscored persistent threats to Israeli digital infrastructure across governmental, corporate, and educational sectors.

Sources

Sources available to members: 1 source.

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