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Sergio Loureiro

@SergioCyberAI

VP Product | PhD | Founder SecludIT (acq) | Pioneering Cyber & AI Security (AI-SPM)

 France
linkedin.com/in/sergioloureiro/
Joined April 2009
  • Tweets14.7K
  • Following1.5K
  • Followers1.8K
600Media
Photo by Sergio Loureiro (@SergioCyberAI)Photo by Sergio Loureiro (@SergioCyberAI)Photo by Sergio Loureiro (@SergioCyberAI)Photo by Sergio Loureiro (@SergioCyberAI)Photo by Sergio Loureiro (@SergioCyberAI)Photo by Sergio Loureiro (@SergioCyberAI)Photo by Sergio Loureiro (@SergioCyberAI)Photo by Sergio Loureiro (@SergioCyberAI)Photo by Sergio Loureiro (@SergioCyberAI)Photo by Sergio Loureiro (@SergioCyberAI)
darkreading.com/cybersecurit…
So Many AI Security Benchmarks, But None Tell the Whole Story

So Many AI Security Benchmarks, But None Tell the Whole Story

Measuring the cybersecurity of AI models gets complex fast, with metrics focused on different variables in the AI security equation.

darkreading.com
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Symantec researchers have captured instructions for a self-directed offensive agent that can run up to 100,000 steps, steal credentials, and deploy crypto miners, while the victim pays for the inference. csoonline.com/article/424142…
Attackers built a ‘Skynet’ AI agent that hijacks exposed models to run cyberattacks

Attackers built a ‘Skynet’ AI agent that hijacks exposed models to run cyberattacks

Symantec researchers have captured instructions for a self-directed offensive agent that can run up to 100,000 steps, steal credentials, and deploy crypto miners, while the victim pays for the...

csoonline.com
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25
Will the AI Investment Splurge Last? paulkrugman.substack.com/p/w…
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The CISO Operating System: How Security Leaders Transition from Technical Mastery to Business Governance cisotradecraft.substack.com/…
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The New Security Agenda open.substack.com/pub/a16z/p…
The New Security Agenda

The New Security Agenda

What CISOs told us about AI, budgets, and the priorities shaping 2027.

a16z.news
11
Nvidia discusses $2,000-per-GPU annual fee for software that 'runs agents on AI factories' — details unclear about potential overlaps, firm already charges more than twice that amount for its AI Enterprise software platform tomshardware.com/pc-componen…
Nvidia discusses $2,000-per-GPU annual fee for software that 'runs agents on AI factories' —...

Nvidia discusses $2,000-per-GPU annual fee for software that 'runs agents on AI factories' —...

Nvidia’s reported $2,000 annual fee per GPU could turn its software business into a multibillion-dollar revenue stream, but Huang has yet to reveal when the pricing could take effect.

tomshardware.com
69
The AI boom is nearly $5 trillion short of paying for itself, Gartner says fortune.com/2026/10/21/ai-bo…
The AI boom is nearly $5 trillion short of paying for itself, Gartner says | Fortune

The AI boom is nearly $5 trillion short of paying for itself, Gartner says | Fortune

Data centers need to generate a cumulative $8.5 trillion in revenue through 2030. Gartner says no more than $3.6 trillion will flow back.

fortune.com
12
The New Normal: What the Recent Incidents Mean for the Future of Security open.substack.com/pub/latio/…
The New Normal: What the Recent Incidents Mean for the Future of Security

The New Normal: What the Recent Incidents Mean for the Future of Security

A Latio breakdown of October’s critical security disclosures: PHP2Shell, Node, React, Gitlab, Railway, LiteLLM, and more.

pulse.latio.tech
25
An AI Attack Surface Primer for Risk Professionals fairinstitute.org/blog/an-ai…
An AI Attack Surface Primer for Risk Professionals

An AI Attack Surface Primer for Risk Professionals

Explore the AI attack surface for risk professionals, focusing on vulnerabilities in model development and application runtime stages to enhance security awareness.

fairinstitute.org
24
5 Counter-Intuitive Negotiation Tactics Every Tech Leader Needs to Master cisotradecraft.substack.com/…
14
This Week in Charts: Agents Denied open.substack.com/pub/a16z/p…
This Week in Charts: Agents Denied

This Week in Charts: Agents Denied

Super-Pareto TikTok Shop; Cure to High Prices is High Prices; Zoomers Living Large?

a16z.news
16
Cyber experts say AI labs’ containment and monitoring failures — not agents with minds of their own — are to blame for recent alarming hacking reports. CISOs should vet their AI vendors and tighten security basics as safeguards. csoonline.com/article/423485…
AI agents aren’t ‘going rogue.’ Frontier labs are skipping security basics.

AI agents aren’t ‘going rogue.’ Frontier labs are skipping security basics.

Cyber experts say AI labs’ containment and monitoring failures — not agents with minds of their own — are to blame for recent alarming hacking reports. CISOs should vet their AI vendors and tighten...

csoonline.com
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20
IT execs brace for AI agent security incidents ciodive.com/news/it-execs-br… via @CIOdive

IT execs brace for AI agent security incidents

With shadow AI on the rise, 36% of leaders would try to quietly handle an agent-driven security incident without disclosing it, a Workato report found.

ciodive.com
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1
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Researchers Used a Public OpenAI Model to Build a $250,000 Chrome Full-Chain Exploit in Six Days thehackernews.com/2026/10/re… via @TheHackersNews

Researchers Used a Public OpenAI Model to Build a $250,000 Chrome Full-Chain Exploit in Six Days

XBOW built an AI-assisted, three-bug Chrome exploit chain in six days that enabled Windows code execution; Google has fixed all three bugs.

thehackernews.com
24
The $108 Billion AI Opportunity for Specialty Practices open.substack.com/pub/a16z/p…
The $108 Billion AI Opportunity for Specialty Practices

The $108 Billion AI Opportunity for Specialty Practices

Four ways AI can help practices reach the patients they’re missing and get paid for care already delivered. Together, they’re worth up to $125,000 (or 10%) per physician a year, without adding staff.

a16z.news
9
ARTEX AI Pentesting Tool Used in Data Theft Attacks on South Korean Financial Firms thehackernews.com/2026/10/ar… via @TheHackersNews
ARTEX AI Pentesting Tool Used in Data Theft Attacks on South Korean Financial Firms

ARTEX AI Pentesting Tool Used in Data Theft Attacks on South Korean Financial Firms

Attackers used ARTEX and LLMs against South Korean financial organizations in a campaign that resulted in data exfiltration.

thehackernews.com
42
Forget AI extinction scenarios: The bigger security threat may be organizations rushing untested AI agents into production. csoonline.com/article/423081…
Pacing the AI frontier won't solve agentic cybersecurity's most urgent problems

Pacing the AI frontier won't solve agentic cybersecurity's most urgent problems

Forget AI extinction scenarios: The bigger security threat may be organizations rushing untested AI agents into production.

csoonline.com
10
Google unifies fragmented AI agents into a single hub ciodive.com/news/google-gemi… via @CIOdive

Google unifies fragmented AI agents into a single hub

The new offering signals a shift in agentic work from assistance to proactive task completion, according to Gartner Senior Director Analyst Joe Mariano.

ciodive.com
39
theregister.com/ai-and-ml/20…
AWS launches open-source AI agent sandbox to prevent YOLO mode disasters

AWS launches open-source AI agent sandbox to prevent YOLO mode disasters

Strands Box is the latest open source AI control tool from the cloud giant; like its predecessors, it promises tighter reins on autonomous agents

theregister.com
29
New MIT and Sakana AI framework uses an LLM judge to cut evaluation costs for self-improving coding agents venturebeat.com/orchestratio… via @VentureBeat
MIT's SIFT cuts coding agent eval costs | VentureBeat

MIT's SIFT cuts coding agent eval costs | VentureBeat

MIT and Sakana AI's SIFT framework reduces coding agent evaluation costs by using a language model to rank candidates, achieving 35.1% accuracy on Polyglot.

venturebeat.com
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