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Async I/O on Linux in databases

news.ycombinator.com Jeremy Tregunna 2025-07-20 06:20:02

I've been working on a complex multi-model database for a few weeks now, and recently I took time to simplify and test out an idea I had on a simple key-value database. I started with the basics: A hash table in memory, a simple append-only log for persistence and durability, and the classic fsync() call after every write to the log for durability. It worked, but wasn't as fast as it could be. In Kevo, that's the approach I use, but in Klay (not public yet, but will be open sourced when ready)

Topics: completion intent io_uring operations wal

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Threat actors downgrade FIDO2 MFA auth in PoisonSeed phishing attack

bleepingcomputer.com Unknown 2025-07-20 03:41:49

A PoisonSeed phishing campaign is bypassing FIDO2 security key protections by abusing the cross-device sign-in feature in WebAuthn to trick users into approving login authentication requests from fake company portals. The PoisonSeed threat actors are known to employ large-volume phishing attacks for financial fraud. In the past, distributing emails containing crypto seed phrases used to drain cryptocurrency wallets. In the recent phishing attack observed by Expel, the PoisonSeed threat actors

Topics: authentication device key phishing security

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MCP Security Vulnerabilities and Attack Vectors

news.ycombinator.com Unknown 2025-07-20 04:14:19

Elevenlabs AudioNative Player Been digging into Model Context Protocol implementations lately and found some stuff that's keeping me up at night. Not because it's earth-shattering, but because it's the kind of boring security debt that bites you when you least expect it. This is Part 1 of a two-part series. Read Part 2: Actually Fixing This Mess → MCP is Anthropic's attempt at standardizing how AI models talk to external tools1. Instead of every AI app rolling their own integration layer, you

Topics: ai mcp security tool tools

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A CarFax for Used PCs: Hewlett Packard wants to give old laptops new life

news.ycombinator.com Abu Baker 2025-07-16 09:02:37

The United Nations’ Global E-waste Monitor estimates that the world generates over 60 million tonnes of e-waste annually. Furthermore, this number is rising five times as fast as e-waste recycling. Much of this waste comes from prematurely discarded electronic devices. Many enterprises follow a standard three-year replacement cycle, assuming older computers are inefficient. However, many of these devices are still functional and could perform well with minor upgrades or maintenance. The issue i

Topics: data pcfax security telemetry usage

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Coway Airmega 50 Review: Effective and Affordable (2025)

wired.com Lisa Wood Shapiro 2025-07-20 03:02:00

I’ve been on the air quality beat for a while here at WIRED, and I often make the argument that consumers should go big when it comes to indoor air, as a larger fan and filter surface area produce a quieter and more powerful air purifier. However, if ever there were a fun-sized air purifier that punches above its weight (all 5 pounds of it), it’s the latest from air powerhouse Coway, the Airmega 50. Standing just over a foot tall, the Airmega 50 was just launched in June and is an addition to t

Topics: 50 air airmega coway purifier

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How OpenAI’s red team made ChatGPT agent into an AI fortress

venturebeat.com Louis Columbus 2025-07-20 09:13:52

Want smarter insights in your inbox? Sign up for our weekly newsletters to get only what matters to enterprise AI, data, and security leaders. Subscribe Now In case you missed it, OpenAI yesterday debuted a powerful new feature for ChatGPT and with it, a host of new security risks and ramifications. Called the “ChatGPT agent,” this new feature is an optional mode that ChatGPT paying subscribers can engage by clicking “Tools” in the prompt entry box and selecting “agent mode,” at which point, t

Topics: agent chatgpt openai red security

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Shutting Down Clear Linux OS

news.ycombinator.com Unknown 2025-07-20 10:45:12

After years of innovation and community collaboration, we’re ending support for Clear Linux OS. Effective immediately, Intel will no longer provide security patches, updates, or maintenance for Clear Linux OS, and the Clear Linux OS GitHub repository will be archived in read-only mode. So, if you’re currently using Clear Linux OS, we strongly recommend planning your migration to another actively maintained Linux distribution as soon as possible to ensure ongoing security and stability. Rest ass

Topics: clear intel linux os security

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Phishers have found a way to downgrade—not bypass—FIDO MFA

arstechnica.com Unknown 2025-07-20 16:07:21

Researchers recently reported encountering a phishing attack in the wild that bypasses a multifactor authentication scheme based on FIDO (Fast Identity Online), the industry-wide standard being adopted by thousands of sites and enterprises. If true, the attack, reported in a blog post Thursday by security firm Expel, would be huge news, since FIDO is widely regarded as being immune to credential phishing attacks. After analyzing the Expel write-up, I’m confident that the attack doesn’t bypass F

Topics: attack device expel fido security

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GrapheneOS makers take a knife to this ‘Google-free’ phone coming to the US (Updated)

androidauthority.com Unknown 2025-07-20 22:40:51

Update, July 18, 2025 (04:40 PM ET): We have just heard back from Fairphone in response to our inquiry. In a statement, the company explains: Fairphone and Murena have a strong, proud partnership that offers many users around the world a secure, sustainable, and modular smartphone alternative – with a clear focus on longevity and lasting value. We’re committed to delivering operating systems that meet market-standard security expectations. While we respect that there are different approaches to

Topics: 2025 android et fairphone security

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Starbase injury rates outpace rivals as SpaceX chases its Mars moonshot

news.ycombinator.com Aria Alamalhodaei 2025-07-21 10:12:05

SpaceX employees are more likely to be injured while working at Starbase than any of its other manufacturing facilities, according to company worker safety records reviewed by TechCrunch. Starbase, a sprawling launch-and-manufacturing site that recently incorporated as its own Texas city, logged injury rates almost six times higher than the average for comparable space vehicle manufacturing outfits and nearly three times higher than aerospace manufacturing as a whole in 2024, according to Occup

Topics: manufacturing safety spacex starbase trir

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SpaceX worker injury rates at Starbase outpace industry rivals

techcrunch.com Aria Alamalhodaei 2025-07-21 09:29:06

SpaceX employees are more likely to be injured while working at Starbase than any of its other manufacturing facilities, according to company worker safety records reviewed by TechCrunch. Starbase, a sprawling launch-and-manufacturing site that recently incorporated as its own Texas city, logged injury rates almost six times higher than the average for comparable space vehicle manufacturing outfits and nearly three times higher than aerospace manufacturing as a whole in 2024, according to Occup

Topics: manufacturing safety spacex starbase trir

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Starbase injury rates outpace rivals as SpaceX chases its Mars moonshot

techcrunch.com Aria Alamalhodaei 2025-07-21 14:29:06

SpaceX employees are more likely to be injured while working at Starbase than any of its other manufacturing facilities, according to company worker safety records reviewed by TechCrunch. Starbase, a sprawling launch-and-manufacturing site that recently incorporated as its own Texas city, logged injury rates almost six times higher than the average for comparable space vehicle manufacturing outfits and nearly three times higher than aerospace manufacturing as a whole in 2024, according to Occup

Topics: manufacturing safety spacex starbase trir

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Ask HN: Any active COBOL devs here? What are you working on?

news.ycombinator.com Unknown 2025-07-22 02:05:55

COBOL legacy systems in finance and government are somewhat of a meme. However, I've never actually met a single person who's day job is to maintain one. I'd be curious to learn what systems are you working on?

Topics: actually cobol curious finance systems

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GrapheneOS makers take a knife to this ‘Google-free’ phone coming to the US

androidauthority.com Unknown 2025-07-22 12:36:51

Paul Jones / Android Authority TL;DR The team behind the GrapheneOS platform has criticized the Fairphone Gen 6 for apparent security issues. The team added that the Fairphone model sold in the US lacks “bare minimum” privacy and security protections. Even the standard Fairphone Gen 6 was criticized for delayed software patches and the lack of a secure element. The Fairphone Gen 6 is one of the best Android phones to get if you want a repairable and sustainable smartphone experience. The dev

Topics: fairphone gen os security team

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Microsoft Offers Free Windows 10 Security Updates for Those Who Don't Want to Upgrade to Windows 11

cnet.com See Full Bio 2025-07-22 15:13:03

The Windows 10 era is almost at an end. Microsoft is ending support for Windows 10 and stopping security support in October. Initially, Microsoft was offering a one-year extended security update for $30, but we've got some good news: Microsoft has added a free option, allowing you to stick with Windows 10 for another year. However, in order to access it, you'll need to use cloud backup and connect it with your OneDrive account. The ability to get free updates on Windows 10 is a pretty big deal

Topics: 10 microsoft security updates windows

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Poor Passwords Tattle on AI Hiring Bot Maker Paradox.ai

krebsonsecurity.com Unknown 2025-07-22 15:23:20

Security researchers recently revealed that the personal information of millions of people who applied for jobs at McDonald’s was exposed after they guessed the password (“123456”) for the fast food chain’s account at Paradox.ai, a company that makes artificial intelligence based hiring chatbots used by many Fortune 500 firms. Paradox.ai said the security oversight was an isolated incident that did not affect its other customers, but recent security breaches involving its employees in Vietnam te

Topics: ai company paradox password security

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‘Utopian’ city California Forever announces huge tech manufacturing park

techcrunch.com Julie Bort 2025-07-22 22:44:05

In Brief California Forever announced on Thursday plans to build a massive manufacturing park called Solano Foundry, the newest addition to its master-planned “utopian” city backed by a group of Silicon Valley billionaires. Solano Foundry is 2,100 acres that can host 40 million square feet of advanced tech manufacturing space. The manufacturing park will be built as part of its planned walkable city with over 175,000 homes, CEO Jan Sramek said at the Reindustrialize conference in Detroit. Sra

Topics: 40 foundry manufacturing park solano

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Taiwan Semi is speeding up U.S. chip production due to demand, CEO says

cnbc.com Ashley Capoot 2025-07-24 02:57:13

Signage for Taiwan Semiconductor Manufacturing Company (TSMC) at it's fabrication plant in Phoenix, Arizona, US, on Monday, March 3, 2025. Taiwan Semiconductor Manufacturing Company CEO C.C. Wei on Thursday said the company is seeing "strong interest" from its leading U.S. customers and is working to speed up its volume production schedule by several quarters. TSMC is the world's largest contract chip manufacturer, and the company has pledged to invest a total of $165 billion in advanced semic

Topics: company fabrication manufacturing semiconductor tsmc

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Confident Security, ‘the Signal for AI,’ comes out of stealth with $4.2M

techcrunch.com Rebecca Bellan 2025-07-24 02:00:00

As consumers, businesses, and governments flock to the promise of cheap, fast, and seemingly magical AI tools, one question keeps getting in the way: How do I keep my data private? Tech giants like OpenAI, Anthropic, xAI, Google, and others are quietly scooping up and retaining user data to improve their models or monitor for safety and security, even in some enterprise contexts where companies assume their information is off limits. For highly regulated industries or companies building on the

Topics: ai data disrupt like security

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I can't go back to grainy night vision after testing this security camera

zdnet.com Maria Diaz 2025-07-25 00:00:14

ZDNET's key takeaways The EufyCam S3 Pro is available separately for $220 or in a two-pack with the HomeBase 3 for $550. This EufyCam is an excellent 4K outdoor security camera that delivers on its night vision promises, features no monthly fees, and has dual motion detection to reduce false alerts. The biggest downsides are that the camera is expensive, especially when you bundle it with HomeBase 3, and its resolution drops to 1080p with HomeKit. $549.99 at Amazon Eufy Security launched a ne

Topics: camera eufycam pro s3 security

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The Future of Social Security Looks Grim. 6 Tips to Help You Save for Retirement Now

cnet.com See Full Bio 2025-07-27 17:00:00

Getty Images/Zooey Liao/CNET Social Security payments can help you fund part of your retirement -- but don't bank on it as your only source of income. The Social Security trust fund is expected to dry up by 2034, according to the Social Security Administration. That's one year sooner than initially forecast. While the fund won't vanish completely, it's estimated that you'll only receive 81% of your benefits, at best. Why? The fund has been running out of money for years, but President Donald

Topics: money plan retirement security social

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Windows KB5064489 emergency update fixes Azure VM launch issues

bleepingcomputer.com Unknown 2025-07-28 06:47:07

Microsoft has released an emergency update to fix a bug that prevents Azure virtual machines from launching when the Trusted Launch setting is disabled and Virtualization-Based Security (VBS) is enabled. The bug impacted Windows Server 2025 and Windows 11 24H2 and was introduced during the July Patch Tuesday security updates. "This update addresses an issue that prevented some virtual machines (VMs) from starting when Virtualization-Based Security (VBS) was enabled," explains Microsoft. "It a

Topics: microsoft security trusted update vms

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Joby Aviation says it is doubling production at its air taxi manufacturing hub

cnbc.com Samantha Subin 2025-07-28 10:41:55

JoeBen Bevirt, founder and CEO of Joby Aviation, stands near an electric air taxi by Joby Aviation at the Downtown Manhattan Heliport in Manhattan, New York City, U.S., November 12, 2023. Joby Aviation is ramping up its manufacturing capabilities in the U.S. as it races to roll out air taxi service in 2026. The electric vertical takeoff and landing (eVTOL) maker said Tuesday that it's launching production at its remodeled components facility in Dayton, Ohio, and plans to double capacity at its

Topics: air aviation city joby manufacturing

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Finding value with AI automation

technologyreview.com Lynn Comp 2025-07-28 10:36:36

Today's opportunity: Significant automation gains When leaders respond to immediate panic, new business risks and mitigations often emerge. Two recent examples highlight the consequences of rushing to implement and publish positive results from AI adoption. The Wall Street Journal reported in April 2025 on companies struggling to realize returns on AI. Just weeks later, it covered MIT’s retraction of a technical paper about AI where the results that led to its publication could not be substanti

Topics: ai analysis language manufacturing new

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The viral Air Purifier Table is my smart home's MVP and it's on sale for under $175

zdnet.com Maria Diaz 2025-07-28 10:00:16

ZDNET's key takeaways The SwitchBot Air Purifier table is available for $258. This large-capacity air purifier has a washable prefilter, a color-changing night light, a wireless charger, and acts as a table. While the air purifier works as intended, the table is small, and the smart capabilities are incompatible with Apple Home. $193.74 at Amazon The SwitchBot 4-in-1 Air Purifier Table is one of my favorite smart home devices ever, and it's on sale for only $174 with an on-page coupon (save $

Topics: air home purifier switchbot table

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Police disrupt “Diskstation” ransomware gang attacking NAS devices

bleepingcomputer.com Unknown 2025-07-28 14:53:08

An international law enforcement action dismantled a Romanian ransomware gang known as 'Diskstation,' which encrypted the systems of several companies in the Lombardy region, paralyzing their businesses. The law enforcement operation codenamed 'Operation Elicius' was coordinated by Europol and also involved police forces in France and Romania. Diskstation is a ransomware operation that targets Synology Network-Attached Storage (NAS) devices, which are commonly used by companies for centralized

Topics: access diskstation enforcement security systems

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My favorite indoor security camera has no subscription fees

zdnet.com Maria Diaz 2025-07-28 22:39:40

ZDNET's key takeaways The Eufy Security Indoor Cam S350 is available for purchase at $130. The S350 indoor camera features dual telephoto and wide-angle lenses with 360-degree motion tracking and optional local storage to avoid monthly fees. The only drawback I've found is that I wish the camera had a button to engage privacy mode manually, but you can schedule it as needed on the app. View now at Amazon It's safe to say the Eufy Security Indoor Cam S350 has become indispensable in my home. W

Topics: camera eufy indoor motion security

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Auriga Space raises $6M to shoot rockets off an electromagnetic launch track

techcrunch.com Aria Alamalhodaei 2025-07-29 02:00:00

While U.S.-based companies are launching more payloads into orbit than ever before, they’re still limited by the inefficiency of conventional rockets. With rockets, most of the weight is in the propellant, not the payload, and a huge portion of it is burned simply battling Earth’s gravity and atmosphere. Auriga Space is aiming to change the launch game. Instead of a first-stage booster, the California-based startup is developing a launch track that will use electricity to power powerful magnets

Topics: auriga higher launch rocket space

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Apple announces $500 million US investment focused on rare earth magnets

9to5mac.com Chance Miller 2025-07-29 06:20:42

Earlier this year, Apple pledged a $500 billion investment in the United States over the next four years. Now, the company is further expanding that pledge with a $500 million plan to “launch an all-new recycling facility for processing recycled rare earth elements.” With this investment, Apple will work with MP Materials and commit to buying American-made rare earth magnets developed in Fort Worth, Texas. The two companies will build out MP Materials’ “state-of-the-art Texas factory” with a “s

Topics: apple earth manufacturing materials rare

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Don't Want to Upgrade to Windows 11? Microsoft Offers Free Windows 10 Security Updates

cnet.com See Full Bio 2025-07-29 11:45:04

The era of Windows 10 is almost at an end. In October 2025, Microsoft is ending support for Windows 10 and stopping security support. Initially Microsoft was offering a one-year extended security update for $30, but we've got good news. Microsoft has added a free option, allowing you to stick with Windows 10 for another year. However, in order to access it, users will need to use cloud backup and connect it with their OneDrive account. The ability to get free updates on Windows 10 is a pretty b

Topics: 10 microsoft security updates windows

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Latest Tech News

Async I/O on Linux in databases

Threat actors downgrade FIDO2 MFA auth in PoisonSeed phishing attack

MCP Security Vulnerabilities and Attack Vectors

A CarFax for Used PCs: Hewlett Packard wants to give old laptops new life

Coway Airmega 50 Review: Effective and Affordable (2025)

How OpenAI’s red team made ChatGPT agent into an AI fortress

Shutting Down Clear Linux OS

Phishers have found a way to downgrade—not bypass—FIDO MFA

GrapheneOS makers take a knife to this ‘Google-free’ phone coming to the US (Updated)

Starbase injury rates outpace rivals as SpaceX chases its Mars moonshot

SpaceX worker injury rates at Starbase outpace industry rivals

Starbase injury rates outpace rivals as SpaceX chases its Mars moonshot

Ask HN: Any active COBOL devs here? What are you working on?

GrapheneOS makers take a knife to this ‘Google-free’ phone coming to the US

Microsoft Offers Free Windows 10 Security Updates for Those Who Don't Want to Upgrade to Windows 11

Poor Passwords Tattle on AI Hiring Bot Maker Paradox.ai

‘Utopian’ city California Forever announces huge tech manufacturing park

Taiwan Semi is speeding up U.S. chip production due to demand, CEO says

Confident Security, ‘the Signal for AI,’ comes out of stealth with $4.2M

I can't go back to grainy night vision after testing this security camera

The Future of Social Security Looks Grim. 6 Tips to Help You Save for Retirement Now

Windows KB5064489 emergency update fixes Azure VM launch issues

Joby Aviation says it is doubling production at its air taxi manufacturing hub

Finding value with AI automation

The viral Air Purifier Table is my smart home's MVP and it's on sale for under $175

Police disrupt “Diskstation” ransomware gang attacking NAS devices

My favorite indoor security camera has no subscription fees

Auriga Space raises $6M to shoot rockets off an electromagnetic launch track

Apple announces $500 million US investment focused on rare earth magnets

Don't Want to Upgrade to Windows 11? Microsoft Offers Free Windows 10 Security Updates

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