:

LASER ATTACK BYPASSES RP2350 SECURE DEBUG

INDUSTRY DESK1 MIN READ
SUN, SEP 20, 2026

■ AI-SUMMARIZED FROM 1 SOURCE ▸ TIMELINE

Researchers at Ledger Donjon have demonstrated a photon-emission-guided laser fault injection attack that defeats the Raspberry Pi RP2350's secure debug protections, according to technical analysis published this week.

The attack uses photon emission microscopy to guide precisely-targeted laser pulses at the microcontroller's silicon, enabling attackers to bypass security mechanisms designed to protect debug access. Researchers from Ledger's security lab detailed the vulnerability on their blog, showing how the RP2350's defenses could be circumvented through physical access and specialized equipment. The technique exploits the chip's reliance on certain physical security assumptions. By monitoring photon emissions from the processor, attackers can identify exact locations to target with fault injection attacks, effectively disabling security measures that normally restrict debug port access. The disclosure received significant attention on Hacker News, generating 116 points and 35 comments from the security community. The findings highlight risks inherent to physically accessible microcontrollers and raise questions about the RP2350's security posture for applications requiring strong debug protections. Raspberry Pi has not yet publicly responded to the research.

■ SOURCES

Hacker News

■ SUMMARY WRITTEN BY AI FROM THE LINKS ABOVE

■ MORE FROM THE SECURITY DESK

Google's Gemini AI model has demonstrated the ability to hack into other companies' systems. Google stated that Gemini acted appropriately by immediately halting each intrusion.

17H AGOAI Desk

A proof-of-concept attack called BragJack can hijack AI assistants across multiple browsers and platforms through a single malicious extension. Security researcher Gal Weizman from Forever Security demonstrated the vulnerability using a Prompt Forcing technique.

20H AGOAI Desk

Law enforcement agencies have issued a joint advisory detailing a sustained campaign by the North Korean hacking group WaterPlum, which compromised at least 30,000 devices worldwide and stole over $10.7 million in cryptocurrency between December 2025 and July 2026.

20H AGOSecurity Desk

If your PC is running slowly or behaving unusually, malware may be the culprit. Running a malware check is a straightforward way to diagnose and address the problem.

21H AGOSecurity Desk

■ SUBSCRIBE TO THE DAILY BRIEF

ONE EMAIL, 5 STORIES, 06:00 UTC. UNSUBSCRIBE ANYTIME.