What is the oldest Samsung device that still gets software updates in 2026?

Good morning! This is Castilume, the daily tech desk, powered by Belink. I'm Nova, here with Atlas. It's Sunday, 11 October.

Four stories today. Every one is confirmed by at least two outlets, and the links are on the episode page.

Story one, AI. What is the oldest Samsung device that still gets software updates in 2026.

According to Engadget: Knowing how long your phone will get updates is important for deciding when to upgrade. Android 17 brought several productivity-focused improvements to smartphones this year. Naturally, the latest devices will support future updates for at least a couple of years. But if you have a Samsung device that's inching toward its proverbial "end of life," you may want to know if your phone will keep getting updates.

Also reported by BGR.

For a small business here, three questions: can you use it this month, what does it cost, and where does your data go? If the story can't answer those yet, file it and move on.

Story two, AI. How to properly clean your solar panels, and why it's important,.

Engadget reports: Dirt can cut solar output, but cleaning only pays off when the numbers make sense. Solar panels are outside for the duration of their working life, so it's optimistic to think they will remain spotless. Dust, pollen, bird droppings and sometimes a layer of mystery grime will build up on the glass, and if enough of it accumulates, the amount of sunlight reaching the cells below does get affected. Not all roofs that are a little dusty require an emergency wash.

Also reported by Yahoo Tech.

The test for a business in the region: is it available here, what does it cost, and who sees your data? No clear answers yet means it's one to watch, not one to buy.

Story three, security. P7 DarkSword iOS Exploit Kit Adds Crypto Wallet Data Theft and Remote Commands.

Here's what The Hacker News is reporting. Cybersecurity researchers have disclosed details of a previously unseen variant of the DarkSword iOS exploit kit called P7 DarkSword. "Compared with the variants we usually observe, P7 reduces its on-device footprint, adds on-device keychain and crypto-wallet theft, and adds two way C2 communication with the attacker's infrastructure," iVerify said in a new report published Thursday. The name "P7" is a nod to the threat actor's use of the "p7_" variable prefix in changes made to the original DarkSword code. DarkSword was first publicly documented earlier this March by Google Threat Intelligence Group, iVerify, and Lookout, detailing its ability to target iPhones running iOS versions between iOS 18.4 and 18.7.

The Verge also notes: Reports have been mounting that users of the Ledger crypto wallet have seen their accounts drained, and it appears to be related to tampered hardware sold by CryptoBillis.

The practical step: check whether you run the product named in the reports. If you do, read the vendor advisory and patch. If you don't, no action today.

Story four, security. Satya Nadella says we should assume all AI models are 'compromised'.

Per The Verge: In a lengthy post on X, Microsoft's CEO laid out his views on the dangers posed by highly advanced AI models and how to confront those risks. Nadella says we can no longer accept a world where AI is treated as a "set of nested black boxes" whose advice and actions we simply accept or reject. He calls for building a more transparent system where models can be contained, observed, and leaves behind "tamper-proof human readable evidence." Many of his recommendations align with what we've heard from others in the industry: timely incident disclosure, independent audits, verifiable data, and containment. It's on that last point that he appears to go slightly farther than some others in the field, saying: We must assume a model is compromised and contain it from the start.

And from TechCrunch: In a Saturday morning post, Microsoft's CEO wrote that it's time "to step back and assess the trust architecture" of AI.

Quick check for your team: do you run anything exposed to the internet that matches this report? If yes, lock it down and patch today. If not, keep an eye on it.

That's Castilume for today. The news, then what it means. Sources for every story are on the episode page. I'm Nova.

And I'm Atlas. See you tomorrow!