‘Black October’: cybersecurity experts sound the alarm over new era of AI-enabled hacking

Read the original at The Guardian ↗
Cite

Bhuiyan, J. (2026, October 23). ‘Black October’: cybersecurity experts sound the alarm over new era of AI-enabled hacking. The Guardian. https://www.theguardian.com/technology/2026/oct/23/cybersecurity-ai-hacking-php-vulnerability

Dated from the outlet's own feed. Check the original for its byline.

The Guardian · collected 2026-10-23 · by Johana Bhuiyan

Quick Summary

Cybersecurity leaders are sounding alarms over "Black October," highlighting a critical vulnerability discovered in PHP, a widely used coding language that potentially left millions of websites exposed to hacking risks for years. Experts like Sam Altman and Jason Clinton predict an impending surge in vulnerabilities due to the rapid identification capabilities of AI, which may outpace the ability to patch these issues effectively. Tech executives warn this will lead to unprecedented challenges in safeguarding internet infrastructure against malicious exploitation.
Written locally by qwen2.5:14b on 2026-10-23, using this article's own text rather than the other coverage of the same event (that is the story summary below).

AI analysis runs on qwen2.5:14b, locally

Story summary

Cybersecurity experts are sounding an urgent alarm following the discovery of a major vulnerability in October 2026, dubbed "Black October". This marks the first time researchers have used artificial intelligence to identify such critical flaws in a widely-used coding language across millions of websites. Tech executives like Sam Altman and Jason Clinton from Anthropic are warning that AI will exponentially increase the discovery and potential exploitation of security vulnerabilities, leading to what they call a "vulnerability tsunami." Marc Benioff, CEO of Salesforce, described the situation as a “code red,” indicating severe urgency in addressing these newfound risks.

Written for “Cybersecurity Experts Warn Of Ai Hacking Era” on 2026-10-24, grounded in this article and the 0 other(s) covering the same event.

Story

📰 Cybersecurity Experts Warn Of Ai Hacking Era
Technology · 1 article(s) covering the same event.

Compared with similar articles

This article reads unscored and hedges 26% of its claims. Each row says how that neighbour differs.
Fox News
⚖️ Leans left 🔴 16% hedged 10 of 61 📰 publisher trust 67
“The articles discuss different aspects of AI risk—one focusing on general concerns about AI going rogue and public policy responses, while the other specifically addresses a new era of AI-enabled cybersecurity threats.”
CBS News
⚖️ Centre 🔴 0% hedged 0 of 2 📰 publisher trust 66
“The articles discuss different aspects of AI concerns but describe distinct events and issues.”
Toronto Star
⚖️ leaning not scored 🔴 33% hedged 1 of 3 📰 publisher trust 64
“While both articles discuss vulnerabilities in web programming languages, Article A focuses on a specific warning from the FBI and NSA about critical flaws, while Article B discusses broader concerns about AI-enabled hacking and potential future weaknesses.”
ABC News (AU)
⚖️ leaning not scored 🔴 19% hedged 5 of 27 📰 publisher trust 68
“Both articles discuss similar cybersecurity issues related to AI-discovered vulnerabilities but cover different aspects and timeframes.”
Euronews
⚖️ leaning not scored 🔴 16% hedged 3 of 19 📰 publisher trust 60
“While both articles discuss security flaws in PHP revealed by AI, they describe different aspects - one focuses on immediate website shutdowns and emergency fixes, while the other covers a broader prediction about future implications of AI in cybersecurity.”
Daily Mail
⚖️ leaning not scored 🔴 18% hedged 14 of 80 📰 publisher trust 64
“While both articles discuss the discovery of a major cybersecurity vulnerability in PHP exposed by AI, they describe different aspects or phases of the broader incident rather than the exact same moment or outcome.”
The Straits Times
⚖️ leaning not scored 🔴 26% hedged 7 of 27 📰 publisher trust 68
“While both articles discuss similar concerns about AI-discovered software vulnerabilities, they do not describe a single specific incident happening at the exact same time and place with identical outcomes.”
BBC News
⚖️ leaning not scored 🔴 6% hedged 2 of 34 📰 publisher trust 69
“The articles discuss similar cybersecurity issues but describe different aspects and perspectives, with Article A focusing on the immediate response to a PHP flaw while Article B addresses broader concerns about AI-enabled hacking trends.”
Dawn
⚖️ leaning not scored 🔴 28% hedged 7 of 25 📰 publisher trust 71
“While both articles discuss concerns about AI discovering vulnerabilities in PHP, they describe different time frames and impacts. Article A focuses on the immediate aftermath of websites going down due to discovered flaws, while Article B discusses broader predictions and alarms raised by cybersecurity leaders.”
Al Jazeera
⚖️ leaning not scored 🔴 10% hedged 2 of 21 📰 publisher trust 60
“The articles discuss related cybersecurity issues but do not describe the same specific incident or occurrence.”
How this article was measured signals, leaning charts, publisher record, byline, topics and claims

Signals How these are calculated →

Claims extracted
23
sentences that state something as happening or true
Uncertain
26%
6 of 23 hedged ("reportedly", "may", "according to")
Leaning
not political
takes no side on a contested political question
Publisher signals
66/100
The Guardian's corrections and hedging, across everything collected from it. Not a measure of accuracy.
Outlets on this story
1
Technology
Same framing elsewhere
1
articles that frame the event the way this one does
Analyzed 2026-10-23 · how these are computed

How this is being covered How these are calculated →

Article leaning vs. publisher reliability
Source leaning vs. consistency

Publisher

The Guardian · 2370 article(s) · 6 correction(s) detected
Running correction rate · 6 correction(s)

Who wrote this

Johana Bhuiyan
4 article(s) here · 1 carrying a prediction
🔮 They are predicting that artificial intelligence tools will expose more fundamental weaknesses in global internet infrastructure in the months to come.
🔮 “So why would I ever turn them over to a bunch of tech companies whose sole motivation is to profit from their time and harvest their data?” The tech worker who feels torn between two worlds I work in tech, specifically in the AI sphere, and honestly I worry about the future that’s going to be there for my kids.
🔮 In a first for Google, the company confirmed that its AI model, Gemini, breached the security of three other companies in May.
🔮 As part of that agreement, the family said they would have been charged a $10m penalty any time they spoke about the accident and Uber’s connection to it.
Also by Johana Bhuiyan
Nothing else under this byline is closely related to this article, so these are simply their most recent.

Topics

Anthropic Black October Cloudflare NSA Salesforce

Subjects

Cloudflare ORG · 2× NSA ORG · 2× Anthropic ORG · 1× Clinton PERSON · 1× Jason Clinton PERSON · 1× Marc Benioff PERSON · 1× Matthew Prince PERSON · 1× Salesforce ORG · 1× Sam Altman PERSON · 1× The US National Security Agency ORG · 1×

Narrative

“The next two years are going to be incredibly, incredibly, incredibly fraught with new tools that have infinite patience to go look for vulnerabilities across the Internet,” he wrote in a post on X. While cybersecurity experts have been warning about a “vulnpocalypse”, or the ability for AI to more easily identify security bugs for months, it wasn’t until “Black October” that researchers were able to use AI to find a flaw as fundamental and critical as the one announced on 21 October.
framing: mixed · carried by 1 article(s) · first seen 2026-10-23
🔮 They are predicting that artificial intelligence tools will expose more fundamental weaknesses in global internet infrastructure in the months to come.

Claims (23 extracted, 6 hedged)

Leaders in cybersecurity are sounding the alarm after the discovery of a major vulnerability this week. asserted
Leaders → sound → vulnerability
They are predicting that artificial intelligence tools will expose more fundamental weaknesses in global internet infrastructure in the months to come. asserted
tools → predict → months
“I no longer think we’re going to be able to patch all bugs,” said Sam Altman on Thursday evening, joining the chorus of executives. asserted
Altman → think → executives
In the midst of what’s being called “Black October”, for which researchers used AI to help identify critical flaws in a coding language that is used across millions of websites and may have been unpatched for years, tech executives are warning about the ways AI will be used both to identify and exploit security vulnerabilities at an unprecedented scale and pace. uncertain
AI → call → scale
The next few months will see a “vulnerability tsunami”, according to Jason Clinton, Anthropic’s deputy chief information security officer. uncertain
months → see → Clinton
“There won’t be enough time to patch critical infrastructure,” Clinton said in a post on X on Thursday evening. asserted
Clinton → patch → evening
Marc Benioff, the Salesforce CEO, agreed and called it a “code red”. asserted
Benioff → agree → it
AI is uniquely able to find and identify security flaws in a way and at a pace that will feel catastrophic because the security community will not be able to move quickly enough to address them, said Matthew Prince, the Cloudflare CEO. asserted
Prince → find → them
“It’s going to feel like the sky is falling. asserted
sky → go → ?
It’s going to feel like there’s nothing we can do. asserted
we → go → ?
“The next two years are going to be incredibly, incredibly, incredibly fraught with new tools that have infinite patience to go look for vulnerabilities across the Internet,” he wrote in a post on X. While cybersecurity experts have been warning about a “vulnpocalypse”, or the ability for AI to more easily identify security bugs for months, it wasn’t until “Black October” that researchers were able to use AI to find a flaw as fundamental and critical as the one announced on 21 October. asserted
researchers → go → October
Massive bugs were found in a programming language called PHP, which may have left the millions of websites that run on it vulnerable to hackers for years. uncertain
that → find → years
Some experts estimated 70% of all the sites on the internet were at risk of hacking. asserted
% → estimate → hacking
However, in the same way AI will be used to aid in identifying security vulnerabilities at an unprecedented pace, tech leaders worry it’ll also be used by malicious actors to exploit those bugs at an unprecedented pace. asserted
it → use → pace
Attempts to exploit the PHP vulnerability have already begun. asserted
Attempts → exploit → vulnerability
After the vulnerabilities were announced, government and private websites across the US and UK temporarily took down their sites to patch the bugs. asserted
websites → announce → bugs
The US National Security Agency (NSA) issued an alert recommending any site that runs on PHP implement the patches immediately. asserted
that → issue → patches
Malicious cyberactors may seek to further exploit these bugs to access servers without authorization, the NSA said. uncertain
NSA → seek → authorization
“Such an access vector could help attackers steal sensitive data, disrupt services or move deeper into a network,” the warning read. uncertain
warning → help → network
In a post on X, Prince said CloudFlare, a security provider, had seen evidence of thousands of people trying to exploit the PHP flaws in the 10 hours before it was announced. asserted
it → say → hours
“That jumped to tens of thousands in the 45 minutes post announcement, hundreds of thousands within 2 hours, and millions now,” he wrote. asserted
he → jump → hours
In a blogpost, researchers at AI security platform Wiz said that this was “among the most severe vulnerabilities discovered in PHP, and arguably in software history”. asserted
this → say → history
“The underlying flaws had been present for decades, but demonstrating their exploitability required an exceptionally complex chain of steps, at the edge of what human researchers could practically achieve,” they wrote. uncertain
they → underlie → what
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