
World banks, tech giants and governments had been despatched scrambling final month to comprise the dangers posed by Mythos, the Anthropic mannequin stated to be so highly effective that it has discovered hundreds of beforehand unknown vulnerabilities on the planet’s software program infrastructure.
There’s only one drawback: the aptitude they’re nervous about is already right here.
Cybersecurity consultants and synthetic intelligence researchers informed CNBC that the software program vulnerabilities revealed by Mythos could be discovered utilizing current fashions, together with these from Anthropic and OpenAI.
“What we’re seeing throughout the trade now could be that persons are in a position to reproduce the vulnerabilities discovered with Mythos by intelligent orchestration of public fashions to get very, very related outcomes,” stated Ben Harris, CEO of cybersecurity agency watchTowr.
Mythos has jolted executives and policymakers alike over concern {that a} perilous new period of AI-enabled cybercrime could also be close to. Anthropic restricted its launch to some American firms together with Apple, Amazon, JPMorgan Chase and Palo Alto Networks to cut back the danger that dangerous actors get their fingers on it.
Even with that precaution, the discharge has prompted the Trump administration to contemplate new authorities oversight over future fashions.
It is the most recent in a string of high-profile launches from Anthropic which have intensified its rivalry with OpenAI as the 2 AI giants strategy their extremely anticipated preliminary public choices. Weeks after the arrival of Mythos, OpenAI CEO Sam Altman introduced GPT-5.5-Cyber, a mannequin particularly tailor-made for cybersecurity.
OpenAI on Thursday allowed restricted entry to GPT-5.5-Cyber to vetted cybersecurity groups.
The managed rollout of Mythos, a part of a safety measure known as Undertaking Glasswing, was to provide the company world time to gird its cyber defenses towards a coming onslaught of assaults from felony teams and adversarial nations.
“The hazard is just a few huge enhance within the quantity of vulnerabilities, within the quantity of breaches, within the monetary injury that is carried out from ransomware on faculties, hospitals, to not point out banks,” Anthropic CEO Dario Amodei stated this week at an Anthropic occasion.
‘Scary sufficient’
However to these preventing within the trenches of cyber warfare, one of many key capabilities marketed by Anthropic — to seek out software program vulnerabilities at scale — has been round since final yr.
“The fashions that we now have proper now are highly effective sufficient to detect zero days in a big scale, and that is scary sufficient,” Klaudia Kloc, CEO of cybersecurity agency Vidoc, informed CNBC.
That has been the case for “a few months, if not a yr,” she stated.
The time period “zero-day” refers to a beforehand unknown software program flaw that hasn’t been patched, giving attackers a window to use it earlier than defenders can reply.
Researchers at Vidoc leaned on a method known as “orchestration” to check if they may discover the identical vulnerabilities that Mythos did. Because the title suggests, the method entails creating workflows that cut up code into smaller items, coordinating between numerous instruments or fashions to cross-check outcomes.
“We ran older fashions towards the identical code base to see if we would be able to detect the identical vulnerabilities,” Kloc stated. “We did, with each OpenAI and Anthropic’s older fashions.”
One other cybersecurity agency, Aisle, discovered that a lot of Mythos’s headline outcomes might be reproduced utilizing cheaper fashions working in parallel — suggesting that scale and coordination had been extra vital than having the most recent mannequin.
“A thousand ample detectives looking in all places will discover extra bugs than one sensible detective who has to guess the place to look,” Aisle founder Stanislav Fort wrote in a weblog publish.
In feedback to CNBC, Anthropic did not dispute that earlier fashions had been able to find software program vulnerabilities.
In truth, an organization spokesperson stated, Anthropic has been warning for months that AI’s cyber capabilities had been advancing quickly. They pointed to a February weblog publish displaying that Claude Opus 4.6, a broadly obtainable mannequin, discovered greater than 500 “excessive severity” vulnerabilities in open-source software program.
On the Anthropic occasion this week, Amodei affirmed this level, saying that whereas the size of software program vulnerabilities discovered by Mythos surged from earlier fashions, the pattern wasn’t new.
“The dangers are very actual. This is the reason we took the actions we did,” Amodei stated. “However they’re additionally, in some sense, not that stunning. … We have been seeing warnings of this for some time.”
Hysteria and panic
What makes Mythos completely different is its capacity to take the subsequent step, creating working exploits with little or no human enter, successfully automating a course of that beforehand required expert researchers, the Anthropic spokesperson stated.
However hackers working for felony teams and adversarial nations have already got this talent set, cyber researchers say. Hackers in North Korea, China and Russia “understand how to do that, with or with out Anthropic,” Kloc stated.
The specter of AI-enabled hacking has firms and authorities regulators nervous about defending essential programs from a brand new wave of ransomware and different sorts of assaults, in accordance with Harris.
He described conversations with banks, insurers and regulators in latest weeks as “hysteria.”

Even earlier than the appearance of generative AI, firms confronted the issue of expert hackers exploiting newfound vulnerabilities in hours, whereas patching the code typically takes days or even weeks. Some patches require key programs to be taken offline, complicating issues.
“The trade is panicking in regards to the variety of vulnerabilities they face now,” Harris stated. “However even earlier than Mythos is broadly obtainable, it could not repair vulnerabilities quick sufficient.”
Earlier than, solely a tiny inhabitants of consultants globally had the power and time to seek out obscure vulnerabilities in software program and exploit them, in accordance with Harris. Now, utilizing at the moment obtainable AI fashions, the obstacles of entry to wreaking cyber havoc have been lowered.
That signifies that banks and different targets will see extra assaults, and that software program programs that beforehand did not draw as a lot curiosity from cybercriminals will now face threats, Harris stated.
Benefit: Offense
Whereas Anthropic, OpenAI and others are engaged on creating cyber protection capabilities commensurate with the issues they’ve recognized, the preliminary benefit goes to offense, not protection, researchers say.
JPMorgan’s Jamie Dimon recommended as a lot when he stated final month that whereas AI instruments may ultimately assist firms defend themselves from cyberattacks, they’re first making them extra susceptible.
“You could have a major enhance within the quantity of vulnerabilities found, however they do not appear to have deployed a device that helps you repair them,” stated Justin Herring, associate on the regulation agency Mayer Brown and former government deputy superintendent for cybersecurity at New York’s monetary regulator.
“Vulnerability administration is the nice Sisyphean process of cybersecurity,” Herring stated.
The restricted group that was a part of the preliminary Mythos launch bought a head begin on patching vulnerabilities, however there’s a draw back. AI researchers have not been given entry to Mythos to independently confirm Anthropic’s claims or to start constructing defenses towards it.
Some say it prevented the broader cyber neighborhood from being a part of the answer.
It has created “tiers of haves and have-nots,” which may stunt the tempo of cybersecurity innovation, stated Pavel Gurvich, CEO of cybersecurity startup Tenzai, which makes use of Anthropic’s fashions.
Many cybersecurity startups are engaged on options that may assist companies on this new period of AI, he stated.
“They’re attempting to determine the easiest way to repair the world earlier than this turns into accessible to the world,” stated Ben Seri, co-founder of cybersecurity startup Zafran Safety. “It is this type of chicken-and-egg scenario, and you are going to break some eggs. It is unavoidable.”


