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Anthropic and Binance show why the speed of containment matters. Cathedral, an AI security startup, says its agents found routes into Anthropic's internal messages and employee records by exploiting third-party business software during a security test. Anthropic acknowledged limited sales, HR and IT exposure, but says its model weights and code were safe, its monitoring caught some activity, and access was cut the same day. I lean toward Cathedral on the significance of that exposure. Internal information can help attackers impersonate colleagues and target people with privileged access. The damage can extend beyond the data initially exposed. Supply-chain risk becomes harder to contain as more tools and agents gain access to company systems. Tighter permissions should help. Building more tools internally might reduce vendor exposure, but it also transfers maintenance and security work to your own team. Binance's October 29 hack involved a different suspected entry point. Its preliminary investigation says a compromised DevOps engineer's laptop may have let an attacker reach an internal service and submit unauthorized withdrawals. Binance estimates a $6.3bn impact, with roughly $3bn frozen so far. An attacker using a trusted employee's access can cause damage without any malicious insider. And TRM Labs says most of the funds leaving Binance moved in about 20 minutes. That is why I think shift-right security becomes increasingly important: detecting and stopping attacks while systems are running. Security teams need to recognize lateral movement, where an attacker moves between accounts or machines, and contain it before the attacker reaches systems that can cause much greater damage. This is part of why we like Palo Alto Networks ($PANW). Cortex combines network, endpoint and cloud data with response controls, including the ability to isolate compromised devices. Connecting an investigation to an action that stops the attack matters when the attacker can move this quickly. It also makes cybersecurity an interesting market for premium-speed AI inference. An AI security agent needs to investigate accurately and act quickly, with current data and permission to intervene. Where the model's reasoning time is delaying containment, paying even 100x more per inference call could make economic sense if the reduction in expected losses exceeds the extra cost. Faster inference becomes valuable when it lets the defender stop an attack sooner without sacrificing accuracy.

Investor Letters

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Altria: Dutiful

Altria raised 2026 adjusted EPS guidance to $5.66 to $5.74 and authorized more buybacks, while on! loses share as cigarette margins hold.

MO $130B
Invariant 1 click

When the liquidity does not add up

Arbor Realty Trust’s dividend suspension is presented as creating $60 million of liquidity, raising questions about its ability to meet…

ABR $2.2B
John Hempton's Newsletter 3 clicks

Verra veerer

Verra Mobility’s Avis termination threatens 2027 earnings, while Government Solutions profit rose 25% and implied fourth-quarter guidance…

VRRM $505M
The Oak Bloke 2 clicks

FTAI 3Q26: Aero margins in focus

FTAI’s Aerospace Products margin rebounded to 31% as CFM56 module output rose, while Power deposits and contracted deliveries fund its 2027…

FTAI $16B
Stock Thoughts 4 clicks

Microsoft's AI Boom Has A Cost

Microsoft’s Azure grew 48% as AI monetization accelerated, but doubled CapEx, largely for CPUs and GPUs, reduced quarterly free cash flow…

MSFT $3.9T
Yiannis Zourmpanos 1 click
T · short

At&t INC

AT&T’s stalled deleveraging and share repurchase case has prompted a bearish turn on the telecom stock.

T $144B
Value Investors Club

CVX Earnings Review

Chevron’s Q3 revenue rose 35% to $65.2 billion and EBITDA 75% to $20.2 billion, while production trailed guidance and refining margins…

CVX $465B
Cestrian Capital Research 3 clicks

SNY Earnings Review

Sanofi raised FY26 guidance after Q3 sales grew 14.3% at constant currency, led by 34.8% Dupixent growth; vaccines declined 6.6%.

SNY $108B
Cestrian Capital Research 1 click

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