door security

Deviant Ollam shows that most physical attacks on doors bypass the lock, with photo and video examples of how doors, frames and hardware get defeated. It is a physical security talk from Shakacon.

A short clip from the 2013 LinuxCon Linux Kernel Panel in which Linus Torvalds is asked about being approached to insert a backdoor into Linux. He answers no verbally while nodding yes, which became a much-shared moment.

Christopher Domas presents research at DEF CON 26 showing a hidden alternate instruction set and undocumented hardware backdoor in some x86 processors, found on a third-party CPU. He uses it to ask how feasible wider hardware backdoors are.

Locksport historian Schuyler Towne's RVASec 2012 talk on why people lock their doors, tracing the history of locks and the assumptions about security behind them.

Apple security head Ivan Krstic gives a Black Hat 2016 talk on iOS security, covering HomeKit, Auto Unlock and iCloud Keychain. He explains key hierarchies and how data can stay safe even in adversarial clouds.

Lock-picking YouTuber Bill Johnson (BosnianBill) explains how to choose a high-security lock and why, showing examples and comparing designs. It covers what makes some padlocks more pick-resistant than others.

A Wendover Productions explainer on how airport security is designed, covering screening layers, x-ray scanning, and the contrast with Israel's profiling-based approach. It walks through the logic behind why security works the way it does.

Ivan Krstic's Black Hat talk on Apple platform security, including the Find My design that uses elliptic curve key diversification to locate offline devices privately. It also covers hardware features such as the T2 chip and secure boot hardening.

Vox's Joe Posner, with help from 99% Invisible, explains why bad doors are everywhere. It covers Don Norman's long-running complaint about doors and the idea that good design should not need instructions.

Christopher Domas's Black Hat talk demonstrates a hardware backdoor in a third-party x86 processor, a hidden core that grants root from userland. He uses it to discuss how feasible broader hardware backdoors might be.

A 34C3 talk on the security architecture of the Nintendo Switch and the early progress breaking it. It introduces the Switch's custom OS and software stack, with the hackers' reverse-engineering and glitching work.

James Mickens's humorous USENIX Security keynote argues that improving security and trusting opaque technology like machine learning is far harder than the industry admits.

Meredith Patterson and Sergey Bratus argue that networked software stays insecure because protocols and inputs are too complex to recognize safely. They propose using formal language theory and grammars to build secure, verifiable input handling.

Andrew "bunnie" Huang examines how realistic hardware supply chain attacks are, from rogue insiders to nation states, in the wake of the Bloomberg Businessweek report. He explains how undocumented components could be hidden on boards and how hard they are to spot.

A short demo shows how to use the Tesla Model 3's mechanical emergency door release on the front doors as a backup to the electronic release. It notes an on-screen warning that frequent use could damage the door seals.

Lieutenant General Mark Hertling gives a TEDx talk arguing that obesity and poor youth fitness are a national security problem because too few young Americans can meet military physical requirements.

Tony Chen of Microsoft explains at BlueHat Seattle 2019 how the Xbox One was designed to resist physical attacks. He covers the security design and hypervisor-based OS architecture that kept the console uncracked for years.

Dan Geer's Black Hat 2014 keynote argues that cybersecurity is a matter of power and policy rather than wishful thinking. He covers surveillance, the vulnerability market, software liability and privacy as the capacity to misrepresent yourself.

David Weston's BlueHat IL 2023 talk traces the evolution of Windows security and previews Windows 11 and hardware advances. It ends with upcoming changes such as Rust in the kernel and fonts, signed binaries and adminless Windows.

Matt Risinger demonstrates a blower door test on a house, using a fan to measure air leakage and find where air gets in and out. It shows how the test reveals the quality of the build.

Veritasium tells the story of the XZ backdoor, how a patient attacker became maintainer and nearly compromised SSH on Linux systems. It also covers free software history and how encryption in SSH works.

Samy Kamkar demonstrates OpenSesame, a device that opens many fixed-code garage doors in seconds by exploiting a newly found attack, built around a Mattel toy. The video explains the attack and which brands are affected.

Dr Mike Pound explains the suspected backdoor in the Dual_EC_DRBG random number generator and how elliptic curve constants could let someone predict its output.

A short Apple Get a Mac ad that mocks Windows Vista's constant security pop-up prompts.

Deviant Ollam's two-hour conference talk explains how elevators work, from the pit and buffers to the car top, controller logic and access-control features. It shows how this knowledge can be used for optimization and for bypassing building security.

A five-minute CGP Grey explainer arguing that a phone is effectively an extension of your mind, and that any backdoor or master key into encrypted devices will inevitably be abused or leaked. It frames the encryption debate as locks that are either unbreakable or absent.

SuperfastMatt looks at how the Tesla Model S retracting door handles were redesigned over time, from many parts to a motor plus sensor, with a focus on engineering and reliability.

A DEF CON 20 talk by RenderMan on the security weaknesses of ADS-B, the unencrypted, unauthenticated aircraft tracking broadcast. It shows how easily the data can be spoofed and what that means for security designed in too late.

Jayson E. Street's DEF CON 19 talk shows photos from real security engagements where he was already inside client facilities, illustrating how social engineering and physical intrusion can cause huge losses. For each attack he also explains what defenses would have stopped him.

Theo de Raadt presents pledge, a new OpenBSD security mechanism that kills processes which exceed the system calls they declared they need. The talk was given late at night at Hackfest 2015.

A 2016 House Judiciary Committee hearing on encryption, held during the Apple and FBI iPhone dispute. It features testimony from Apple, the FBI and outside experts including Susan Landau, and runs over five hours.

A UC Berkeley CS 161 lecture by Nicholas Weaver on cryptocurrency and blockchains, covering how they work and the case against them. It is aimed at a computer security course audience.

A 36C3 talk that systematically evaluates OpenBSD's exploit mitigations, asking how effective they really are and what they cost in performance, complexity and inspectability. It challenges the project's security marketing.

John Oliver's Last Week Tonight segment on US voting machines, covering how they work, their security weaknesses, and how elections could be made more secure.

LockPickingLawyer picks an Amazon's Choice 'high security' padlock in about two seconds.

Rory McCune's AppSec EU 2015 talk on security risks in modern software deployment. It covers weaknesses in package ecosystems like npm, RubyGems and PyPI, and repository compromise.

Microsoft's Tony Chen explains how the Xbox One was designed to resist physical attacks, including secure boot, encrypted memory, a security processor and a hypervisor. The goal was to make any hardware attack cost more than the price of many games.

CGP Grey explains the history of the US Social Security card and number, and why they became a de facto national ID despite never being meant for it. He also covers why America resists a proper identity card.

Deviant Ollam, head of a physical penetration testing team, presents tactics for getting into buildings, from bypassing door levers with a wire to defeating bank doors. He argues that physical security is often surprisingly weak.

The Lock Picking Lawyer tests the supposedly unpickable lock designs built by the Stuff Made Here channel. He looks for bypasses and weaknesses in the novel anti-picking mechanisms.