John Leyden
@jleyden.bsky.social
Cybersecurity journalist for csoonline.com (past Daily Swig, The Register and others). Sports fan and travel enthusiast.
Listening to Rory Stewart talking geopolitics #infosec. Trump’s decision to dismantle federal funding for universities and science, laying off US govt cybersecurity staff is bad news. Stewart predict regulatory divergence
June 4, 2025 at 10:00 AM
Listening to Rory Stewart talking geopolitics #infosec. Trump’s decision to dismantle federal funding for universities and science, laying off US govt cybersecurity staff is bad news. Stewart predict regulatory divergence
SANS Institute’s James Lyne and Cairan Martin talking about trends for cybersecurity leaders at #InfosecEurope
June 3, 2025 at 3:30 PM
SANS Institute’s James Lyne and Cairan Martin talking about trends for cybersecurity leaders at #InfosecEurope
Mikko Hypponen introducing a panel on AI by mentioning his 34 year career in infosecurity, back to the days of viruses on floppy discs. Mikko says cybersecurity is no longer just about securing computers but about securing society
June 3, 2025 at 12:20 PM
Mikko Hypponen introducing a panel on AI by mentioning his 34 year career in infosecurity, back to the days of viruses on floppy discs. Mikko says cybersecurity is no longer just about securing computers but about securing society
Listening to NCSC’s Paul Chichester talking about geopolitics driving cyber threats
June 3, 2025 at 12:00 PM
Listening to NCSC’s Paul Chichester talking about geopolitics driving cyber threats
Space time itself comes from a network on entangled qubits, says Prof Brian Cox (referencing discovery by Prof Stephen Hawking) <— Space time is a quantum error correction code
June 3, 2025 at 10:00 AM
Space time itself comes from a network on entangled qubits, says Prof Brian Cox (referencing discovery by Prof Stephen Hawking) <— Space time is a quantum error correction code
Prof Brian Cox talking about black holes, quantum physics and quantum computing
June 3, 2025 at 9:40 AM
Prof Brian Cox talking about black holes, quantum physics and quantum computing
@grahamcluley.com opens the show by talking about the history of malware. 1990s boot sector viruses on floppy discs written by the likes of ColostomyBagBoy
June 3, 2025 at 9:30 AM
@grahamcluley.com opens the show by talking about the history of malware. 1990s boot sector viruses on floppy discs written by the likes of ColostomyBagBoy
And, as a bonus, I also got to see the Kitt car from David Hasselhoff’s TV show Knight Rider
April 3, 2025 at 2:00 PM
And, as a bonus, I also got to see the Kitt car from David Hasselhoff’s TV show Knight Rider
Here’s @rikferguson.com offering a history lesson on cybersecurity calamities…
April 3, 2025 at 1:00 PM
Here’s @rikferguson.com offering a history lesson on cybersecurity calamities…
Great day at the #DTXM25 conference in Manchester yesterday. Saw talks by @rikferguson.com and @jakemooreuk.bsky.social as well as a timely panel on mental health in cybersecurity teams
April 3, 2025 at 12:00 PM
Great day at the #DTXM25 conference in Manchester yesterday. Saw talks by @rikferguson.com and @jakemooreuk.bsky.social as well as a timely panel on mental health in cybersecurity teams
UK government is running consultations in coop with French to improve transparency into the cyber intrusion market #BlackHatEU <— Analogies with defence procurement don’t map well, say foreign office reps
December 12, 2024 at 12:00 PM
UK government is running consultations in coop with French to improve transparency into the cyber intrusion market #BlackHatEU <— Analogies with defence procurement don’t map well, say foreign office reps
Defending off the land: Using existing Windows OS capabilities rather the XDR agents or similar from security vendors to detect and alert on attackers (HT Thinkst Canary) #BlackHatEU2024
December 12, 2024 at 11:00 AM
Defending off the land: Using existing Windows OS capabilities rather the XDR agents or similar from security vendors to detect and alert on attackers (HT Thinkst Canary) #BlackHatEU2024
Senior French interior ministry chief Brigadier General Eric Freyssinet talking cybercrime trends #BlackHatEU2024
December 12, 2024 at 9:30 AM
Senior French interior ministry chief Brigadier General Eric Freyssinet talking cybercrime trends #BlackHatEU2024
Research into 4 years of threat intel on SAP vulnerabilities revealed a sharp spike in discussions in 2020 #BlackHatEU
December 12, 2024 at 9:00 AM
Research into 4 years of threat intel on SAP vulnerabilities revealed a sharp spike in discussions in 2020 #BlackHatEU
Interesting talk by Johann Rehberger of embracethered.com on advanced prompt injection exploits in LLM applications such as Microsoft Copilot #BlackHatEU2024
December 11, 2024 at 7:00 PM
Interesting talk by Johann Rehberger of embracethered.com on advanced prompt injection exploits in LLM applications such as Microsoft Copilot #BlackHatEU2024
WorstFit: character conversion issue with Window’s BestFit tech creates numerous vulnerabilities in various applications, Orange Tsai tells #BlackHatEU
December 11, 2024 at 12:00 PM
WorstFit: character conversion issue with Window’s BestFit tech creates numerous vulnerabilities in various applications, Orange Tsai tells #BlackHatEU
KeyTrap denial of service attack against DNSSec: 10 requests per second enough to create a viable DOS attack. Worse strain of attack - single request 18 mins DOS. All resolvers vulnerable. #BlackHatEU2024
December 11, 2024 at 11:00 AM
KeyTrap denial of service attack against DNSSec: 10 requests per second enough to create a viable DOS attack. Worse strain of attack - single request 18 mins DOS. All resolvers vulnerable. #BlackHatEU2024
The internet in the West is dominated by 8 (mostly US) mega corporations <— This is bad for resilience, Douzet warns
December 11, 2024 at 10:40 AM
The internet in the West is dominated by 8 (mostly US) mega corporations <— This is bad for resilience, Douzet warns
French geopolitics academic Frédérick Douzet talking about the geopolitical implications of network connectivity and complexity #BlackHatEU2024
December 11, 2024 at 9:40 AM
French geopolitics academic Frédérick Douzet talking about the geopolitical implications of network connectivity and complexity #BlackHatEU2024
A monoculture isn’t going to work well in a chaotic political environment, says Black Hat’s Jeff Moss #BlackHatEU2024 <—- Need to have flexibility in skills and avoid vendor lock-in
December 11, 2024 at 9:20 AM
A monoculture isn’t going to work well in a chaotic political environment, says Black Hat’s Jeff Moss #BlackHatEU2024 <—- Need to have flexibility in skills and avoid vendor lock-in