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YC SAFE News

The Simple Agreement for Future Equity, or SAFE, has become a standard way for early-stage startups to raise money. Here you will find articles about how SAFEs work in practice, changes to common terms, and debates among founders and investors about early-stage fundraising.

Typical stories explain valuation caps, discounts, and dilution in plain language, or report on how market conditions push standard terms up or down. Cautionary tales appear as well, often about founders who stacked too many SAFEs and only discovered the ownership consequences at their priced round.

Fundraising mechanics may sound dry, but they decide who owns how much of a company when the stakes get high. First-time founders, angel investors, and startup lawyers all follow this topic because a single misunderstood clause can be worth millions later on.

America's carpet capital: an empire and its toxic legacy
2026-05-09

For decades, Georgia's dominant carpet manufacturing industry relied heavily on PFAS, commonly known as forever chemicals, leaving a devastating environmental legacy across the American South. This extensive use of persistent synthetic compounds has resulted in severe ecological degradation and widespread drinking water contamination that continues to impact local communities today.

CPanel's Black Week: 3 New Vulnerabilities Patched After Attack on 44k Servers
2026-05-09

Following a massive ransomware attack that compromised 44,000 web hosting servers through an authentication bypass, cPanel has issued critical emergency security updates. The latest patch addresses the initial exploit alongside three additional newly discovered vulnerabilities in the platform. Administrators are urged to apply these updates immediately to secure their cPanel and WHM environments.

What causes lightning? The answer keeps getting more interesting
2026-05-09

Physicists are utilizing advanced new instruments to uncover the long-standing mysteries behind lightning formation. Recent observations reveal that storm clouds contain highly unexpected and violent phenomena. These discoveries are bringing researchers closer to fully understanding the underlying mechanics of lightning.

Making your own programming language is easier than you think (but also harder)
2026-05-09

Creating your own programming language is surprisingly accessible when developers bypass complex traditional tools in favor of simple, hand-written recursive descent parsers or AI assistants. The true difficulty lies not in the technical execution of the compiler, but in managing severe scope creep and resisting the urge to endlessly add unnecessary features to the project.

Show HN: Rust but Lisp
2026-05-09

A developer has released an open-source project called Rust but Lisp, which combines the syntax and paradigms of Lisp with the underlying capabilities of the Rust programming language. The source code is currently available on GitHub for community testing and collaborative development.

Meta Shuts Down End-to-End Encryption for Instagram Messaging
2026-05-09

Meta is shutting down end-to-end encryption for Instagram direct messages due to low user adoption. The company revealed that very few people were actually opting in to use the secure messaging feature.

Can LLMs model real-world systems in TLA+?
2026-05-09

While large language models are improving at generating TLA+ models, practitioners note they still struggle with liveness properties and state space explosions without close human guidance. This limitation has sparked a broader community debate over whether AI and general-purpose proof assistants like Lean 4 will eventually replace domain-specific formal verification tools like TLA+ and SystemVerilog Assertions.

Light without electricity? Glowing algae could make it possible
2026-05-09

Researchers at the University of Colorado Boulder have developed a new 3D printable material embedded with living bioluminescent algae. The material is capable of producing sustained light without the need for electricity. This breakthrough paves the way for innovative, eco-friendly lighting solutions and novel biological devices.

Production engineering when trading billions of dollars a day [video]
2026-05-09

This video explores the unique challenges of production engineering for financial software that processes billions of dollars across global stock markets daily. It highlights the intense technical demands required to monitor and operate these high-stakes trading systems at a near-unlimited scale.

GrapheneOS fixes Android VPN leak Google refused to patch
2026-05-09

GrapheneOS has released an update to patch an Android VPN bypass flaw capable of leaking a user's real IP address. This fix addresses a vulnerability that Google previously declined to patch, ensuring users of the privacy-focused operating system are now protected.

How LEDs are made (2014)
2026-05-09

A retrospective discussion on a 2014 article about LED manufacturing highlights the complex physics and thermal management required to maximize semiconductor brightness. Commenters share anecdotal memories of early blue and white LED innovations, including makeshift liquid nitrogen experiments to overcome heat dissipation limits. The conversation also expresses awe at the grueling physical assembly process, noting the intense precision required for workers to manually align tens of thousands of microscopic LED dies every day.

PipeDream on the Acorn Archimedes
2026-05-09

This tech feature examines PipeDream, an unconventional productivity suite built for the obscure Acorn Archimedes operating system. The software willfully rejects traditional interface designs to offer a highly unique user experience. Additionally, the piece highlights the machine's pioneering processor, which was remarkably advanced thirty years ahead of its time.

Google broke reCAPTCHA for de-googled Android users
2026-05-08

Google's reCAPTCHA system now requires users to run the company's proprietary software to prove they are human. Consequently, privacy-focused individuals using de-googled versions of Android are being incorrectly flagged as bots and blocked from accessing websites.

Cloudflare to cut about 20% of its workforce
2026-05-08

Cloudflare is cutting approximately 20% of its workforce to restructure operations and prioritize the adoption of artificial intelligence tools. Alongside the layoffs, the company announced that its second-quarter revenue forecast fell slightly below Wall Street expectations.

Canvas online again as ShinyHunters threatens to leak schools’ data
2026-05-08

Instructure's Canvas learning management platform has been restored online following a disruption caused by a confirmed data breach. The ShinyHunters hacking group claimed responsibility for the incident and is threatening to leak sensitive school data if ransom demands are not met.

Poland is now among the 20 largest economies
2026-05-08

More than three decades after the fall of communism left the country in economic ruins, Poland has undergone a remarkable transformation. The nation has now officially secured its position as the twentieth largest economy in the world.

David Attenborough's 100th Birthday
2026-05-08

Sir David Attenborough is celebrating his 100th birthday. The royal couple marked the milestone by sharing photographs of him. They also took the opportunity to wish him a very happy birthday.

An Introduction to Meshtastic
2026-05-08

Meshtastic is an open-source project that enables long-range, off-grid communication without relying on traditional cellular networks. By utilizing LoRa radios, this community-driven initiative allows users to build decentralized messaging networks for remote exploration and emergency preparedness.

Maybe you shouldn't install new software for a bit
2026-05-08

Users are advised to pause installing new software and system updates for the time being. This precautionary measure follows the discovery of several new vulnerabilities in the Linux kernel that require immediate attention from developers.

Cartoon Network Flash Games
2026-05-08

A newly curated web collection allows users to play classic Cartoon Network Flash games directly in their web browsers. The archive features nostalgic titles inspired by iconic animated series such as The Powerpuff Girls, Dexter’s Laboratory, and Samurai Jack, offering fans a seamless way to revisit early internet entertainment.