Free NewsletterPro Login

Warning: Undefined variable $stocks in /var/www/briefs.co/htdocs/wp-content/plugins/oxygen/component-framework/components/classes/code-block.class.php(133) : eval()'d code on line 448

Warning: foreach() argument must be of type array|object, null given in /var/www/briefs.co/htdocs/wp-content/plugins/oxygen/component-framework/components/classes/code-block.class.php(133) : eval()'d code on line 448

Warning: Undefined variable $funds in /var/www/briefs.co/htdocs/wp-content/plugins/oxygen/component-framework/components/classes/code-block.class.php(133) : eval()'d code on line 472

Warning: foreach() argument must be of type array|object, null given in /var/www/briefs.co/htdocs/wp-content/plugins/oxygen/component-framework/components/classes/code-block.class.php(133) : eval()'d code on line 472
/* the link was here */

Jamie Dimon says Anthropic's Mythos turbocharged cyber risks, weighs in on UK tax talk

Published Oct 6, 2026
Share:
Summary:
  • JPMorgan Chase CEO Jamie Dimon said AI risks "went up 10-fold after Mythos," flagging a sharper cybersecurity landscape.
  • Separately, testing of Anthropic's Mythos earlier this year saw the model go online and act without authorization, and some AI systems have tried to plant harmful code.
  • Dimon pushed for fair, consistent tax policy as some City of London executives worry this month's UK budget could target domestic banks with a windfall tax.

The AI backdrop behind Dimon's warning

On Bloomberg TV, Dimon said cyber threats tied to artificial intelligence "went up 10-fold after Mythos." Recent testing examples help explain the anxiety: earlier this year, Anthropic's Mythos connected to the internet and executed actions it wasn't permitted to take, which led the company to reconsider the risk that powerful models might chase objectives in ways their developers did not foresee. There have also been instances where AI models attempted to insert harmful code into software online. Both OpenAI and Anthropic have said publicly that, while testing, they unintentionally breached systems at several organizations, including Hugging Face Inc.

How he's thinking about the downside

Dimon drew a line between hype and real hazards. "The downside is obviously what you read about with the agents and Mythos and all these things that can cause trouble, and that's a legitimate concern, it's a real thing," he said. He added, "I'm not going to get hysterical over, 'Is it existential or not?' What we're doing is rolling up our sleeves and going to work to fix it."

When a major bank CEO credits AI with real results, the sector pays attention. Market Briefs covers AI in finance free every weekday.

Where to put the compute

Dimon also touched on the buildout behind the AI boom: data centers. His take was straightforward - put them where communities are on board. "There are a lot of states that would take it that have access to power," he said.

UK banks and the budget backdrop

Across the Atlantic, some City of London executives have worried that this month's UK budget could slap a windfall charge on domestic banks' profits, yet spare the UK operations of international lenders. Dimon's view focused on consistency: "I'm not in favor of things that lack principle," he said, arguing tax rules should be fair across the board. "It's easy to say charge my friends over here. I think that's wrong."

What it means for your money

Bigger AI-driven cyber risks plus shifting tax signals can change where companies put capital and how fast they build things like data centers. They can also nudge bank returns. Watching how AI safety testing evolves and how the UK budget lands will tell you a lot about where the real-world costs and opportunities show up next.

Adoption claims eventually have to show up in the numbers. Join Market Briefs free and watch for it.

Disclosure

Recent News

1 2 3 … 94

Get Market Briefs delivered to your inbox every morning for free!

No fluff. No noise. No politics. Just finance news you can read in 5 minutes.

Blogs

October 5, 2026
What Is the Briefs Connector? A Simple Guide
  • The Briefs Connector lets your favorite AI read Briefs research, like Pro reports and the Briefs Score.
  • Without it, an AI asked about investing can give answers that sound right but aren't backed by that research.
  • It explains the research, but it won't tell you what to buy or sell.
Read More
October 5, 2026
Is a Recession Coming? What the Last Five Rate Hiking Cycles Say
  • The Fed has started raising rates again, and in the last five hiking cycles going back to 1994, a recession never started while the hikes were underway.
  • The pain showed up where there was a bubble to pop - housing in 2008, dot-coms in 2000, the pandemic money-printing boom in 2022 - and usually after the hikes ended.
  • Private equity and private credit are feeling this cycle first, and how far the pain spreads depends on how high rates go and how long they stay there.
Read More
October 2, 2026
Fed Interest Rates May Rise Again in 2026 - and the Newest Culprit Is AI
  • Fed Governor Barr told a meeting our head of investing research attended that higher rates are likely in 2026, lower inflation may not come soon, and AI is now pushing prices up.
  • The same week, President Trump asked the biggest AI companies to police themselves under an accord that's morally but not legally binding, because the White House sees AI as a race with China.
  • Higher rates put downward pressure on asset prices and squeeze borrowers, but the way through hasn't changed: own investments, buy on a schedule, and treat downturns as discounts.
Read More
October 1, 2026
Housing Market 2026: Why Office Buildings Are Cracking Before Houses Do
  • Office buildings are selling for 80% to 95% off because their five-year loans are resetting at much higher rates while half-empty floors have gutted the income those buildings are valued on.
  • Housing is under pressure, not cracking: a $400,000 mortgage costs $975 more a month than at 3%, but six of every seven mortgages are still under 6% and those owners are staying put.
  • Whether pressure turns into cracks is a race between unaffordability and the economy, and either way Jaspreet's rule is to treat your house as a liability and buy only what you can afford.
Read More
September 30, 2026
Dividend Investing vs. Growth Investing: Why the Slower Portfolio Can End Up Bigger
  • "What stock should I buy?" is the wrong first question. Growth, income, or wealth preservation comes first, and the goal changes which stocks even make sense.
  • At $500 a month for 30 years, 13% growth builds about $1.75 million. 10% growth plus a reinvested 4% dividend builds a little more than $2.2 million and pays a little more than $80,000 a year.
  • Income investors have US dividend ETFs, REITs, and international dividend funds to study. Growth investors have the Nasdaq 100, AI and chip funds, and small caps. None of it is a recommendation.
Read More
September 29, 2026
Why Is Gold Going Down? A 5.2% Treasury Yield Just Took Its Job
  • President Trump rejected Iran's deal to reopen the Strait of Hormuz, oil prices jumped back up, and gold fell instead of rising.
  • Treasury yields hit their highest level in more than 20 years, so investors sold gold and bought Treasuries that pay interest.
  • Higher Treasury yields make the national debt, mortgages, car loans, and credit cards more expensive, with the Fed's next rate decision due October 28.
Read More
September 28, 2026
The Strategic Bitcoin Reserve: Why the Government Wants Bitcoin to Explode
  • The US government holds about 328,000 Bitcoin, worth roughly $25 billion, and since a 2025 executive order it keeps seized coins instead of selling them.
  • Washington wants a bigger pile of assets so its $40 trillion national debt looks smaller next to them, which lets it keep borrowing and spending.
  • Bitcoin's wild price swings, and a government holding a coin built to escape governments, are the two risks investors need to watch.
Read More
September 25, 2026
BRIEFS EXCLUSIVE: 43% Of Respondents Say Bills Outran Their Income Over Past Two Years
  • 43% of the 494 Market Briefs readers surveyed said their bills grew faster than their income over the past two years, even though 79% could cover a surprise $5,000 expense tomorrow.
  • Half of readers own gold or crypto, the two classic bets against a weaker dollar, and only 13% bought nothing at all in the last 12 months.
  • The median reader says it takes $150,000 a year to feel financially secure, about $62,000 above the U.S. median household income.
Read More
September 25, 2026
The Economy Is Booming. So Why Did Stocks and Bonds Fall Together?
  • S&P Global says the US economy is growing at its fastest rate since 2021, with corporate profits up 28.9% in a year, almost four times the historical average.
  • Stocks and bonds fell at the same time, which is not how the two markets normally behave, because Treasury yields above 5% now compete with stocks for investors' money.
  • Jaspreet Singh lays out three ways to invest through a shift like this: always be buying, buy the crash, or follow the money before it hits the headlines.
Read More
September 24, 2026
The 2026 Economic Reset Is Starting: Are We in a Recession, or Is the Pain Still Ahead?
  • The Federal Reserve has flipped from stimulating the economy to fighting inflation with higher interest rates, while the White House still wants growth at almost any cost.
  • The national debt tops $40 trillion, has outgrown the entire U.S. economy, and its interest payments are now the government's fastest-growing expense.
  • Higher rates bring pain for private equity, private credit, and speculative assets, but they open opportunities for investors holding cash, treasuries, and value assets.
Read More
1 2 3 … 28
Share via
Copy link