Researchers find deliberate backdoor in police radio encryption algorithm

Vendors knew all about it, but most customers were clueless.

police radio in car

Enlarge (credit: Evgen_Prozhyrko via Getty)

For more than 25 years, a technology used for critical data and voice radio communications around the world has been shrouded in secrecy to prevent anyone from closely scrutinizing its security properties for vulnerabilities. But now it’s finally getting a public airing thanks to a small group of researchers in the Netherlands who got their hands on its viscera and found serious flaws, including a deliberate backdoor.

The backdoor, known for years by vendors that sold the technology but not necessarily by customers, exists in an encryption algorithm baked into radios sold for commercial use in critical infrastructure. It’s used to transmit encrypted data and commands in pipelines, railways, the electric grid, mass transit, and freight trains. It would allow someone to snoop on communications to learn how a system works, then potentially send commands to the radios that could trigger blackouts, halt gas pipeline flows, or reroute trains.

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Tetra-Funk unsicher: Gespräche von Polizei, Militär und Notdiensten sind abhörbar

Viele Organisationen, die auf Tetra-basierte Funkgeräte vertrauen, kommunizieren offenbar nicht ganz so abhörsicher wie bisher vermutet. (Sicherheitslücke, Verschlüsselung)

Viele Organisationen, die auf Tetra-basierte Funkgeräte vertrauen, kommunizieren offenbar nicht ganz so abhörsicher wie bisher vermutet. (Sicherheitslücke, Verschlüsselung)

Catching up with Foundation S2 as the Second Crisis unfolds

The second season has faster pacing, more linear storytelling, and bits of levity.

Lee Pace in long blue rob wth plunging vee neck

Enlarge / Lee Pace as the latest incarnation of Brother Day, one of a trio of ruling Cleons in Apple TV's Foundation. (credit: Apple TV+)

We're now two episodes into the second season of Foundation, Apple TV's epic sci-fi series adapted—or remixed, per showrunner David Goyer—from the seminal series of stories by Isaac Asimov, and it's shaping up to be even better than its first. Goyer took great pains in S1 to carefully set up his expansive fictional world, and the scope has only broadened in the second season.

Goyer describes the new season as more emotional and romantic, with a bit more humor—or at least moments of levity—and faster paced now that the main characters and their key relationships have been well established. "Now it's a bit like jazz," he said. "We can riff on our creation and start to move the chess pieces around and create alliances or unusual pairings that didn't exist last season. Audiences have a certain expectation of how things are going to unfold, and part of the fun is subverting those expectations." The narrative is also more linear, with fewer time jumps forward and back—just the occasional traditional flashback.

(Major spoilers for S1 below. Some minor spoilers for S2 but no major reveals.)

Read 22 remaining paragraphs | Comments

Catching up with Foundation S2 as the Second Crisis unfolds

The second season has faster pacing, more linear storytelling, and bits of levity.

Lee Pace in long blue rob wth plunging vee neck

Enlarge / Lee Pace as the latest incarnation of Brother Day, one of a trio of ruling Cleons in Apple TV's Foundation. (credit: Apple TV+)

We're now two episodes into the second season of Foundation, Apple TV's epic sci-fi series adapted—or remixed, per showrunner David Goyer—from the seminal series of stories by Isaac Asimov, and it's shaping up to be even better than its first. Goyer took great pains in S1 to carefully set up his expansive fictional world, and the scope has only broadened in the second season.

Goyer describes the new season as more emotional and romantic, with a bit more humor—or at least moments of levity—and faster paced now that the main characters and their key relationships have been well established. "Now it's a bit like jazz," he said. "We can riff on our creation and start to move the chess pieces around and create alliances or unusual pairings that didn't exist last season. Audiences have a certain expectation of how things are going to unfold, and part of the fun is subverting those expectations." The narrative is also more linear, with fewer time jumps forward and back—just the occasional traditional flashback.

(Major spoilers for S1 below. Some minor spoilers for S2 but no major reveals.)

Read 22 remaining paragraphs | Comments

Neue Befehle, mehr Register: Intel überarbeitet x86-Architektur, AVX-512 für alle CPUs

Code soll effizienter auf Intel-Prozessoren laufen, Desktop-Prozessoren bekommen wieder AVX-512 – allerdings möglicherweise mit Einschränkungen. Von Johannes Hiltscher (Prozessor, Intel)

Code soll effizienter auf Intel-Prozessoren laufen, Desktop-Prozessoren bekommen wieder AVX-512 - allerdings möglicherweise mit Einschränkungen. Von Johannes Hiltscher (Prozessor, Intel)