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Cosmic Log

Portal raises $17.5M for spacecraft powered by sun’s heat
Bothell, Wash.-based Portal Space Systems says it has raised $17.5 million in seed funding to accelerate the development of its Supernova space vehicle, which aims to harness the heat of the sun to power rapid-response maneuvers in orbit.

The oversubscribed inves
cosmiclog.com/2025/04/03/porta
#GeekWire #Uncategorized #PortalSpaceSystems #Propulsion #SolarPower #Space

Illustration: Portal Space Systems' Supernova space vehicle in orbit
Cosmic Log · Portal raises $17.5M for spacecraft powered by sun’s heatBothell, Wash.-based Portal Space Systems says it has raised $17.5 million in seed funding to accelerate the development of its Supernova space vehicle, which aims to harness the heat of the sun to…
Schneier on Security RSS

Web 3.0 Requires Data Integrity

If you’ve ever taken a computer security class, you’ve probably learned about the three legs of computer security—confidentiality, integrity, and availability—known as the CIA ... schneier.com/blog/archives/202

Schneier on Security · Web 3.0 Requires Data Integrity - Schneier on SecurityIf you’ve ever taken a computer security class, you’ve probably learned about the three legs of computer security—confidentiality, integrity, and availability—known as the CIA triad. When we talk about a system being secure, that’s what we’re referring to. All are important, but to different degrees in different contexts. In a world populated by artificial intelligence (AI) systems and artificial intelligent agents, integrity will be paramount. What is data integrity? It’s ensuring that no one can modify data—that’s the security angle—but it’s much more than that. It encompasses accuracy, completeness, and quality of data—all over both time and space. It’s preventing accidental data loss; the “undo” button is a primitive integrity measure. It’s also making sure that data is accurate when it’s collected—that it comes from a trustworthy source, that nothing important is missing, and that it doesn’t change as it moves from format to format. The ability to restart your computer is another integrity measure...
#Uncategorized#protocols#Internet
Europa a Sinistra

L’editoriale di Pietro Soldini.
Il 25 aprile è passato, per la seconda volta nel tempo del governo Meloni, ma non è passato il pericolo neonazi fascista e quindi il bisogno di antifascismo, ma non di antifascismo celebrativo, bensi' militante.Per fare un bilancio, occorre partire dalle due affermazioni più significative del governo, una per bocca della Meloni e l'altra per bocca di suo cognato, ma ispir
europeleft.it/2025/04/02/ledit
#Uncategorized

Europa a Sinistra · L’editoriale di Pietro Soldini.Il 25 aprile è passato, per la seconda volta nel tempo del governo Meloni, ma non è passato il pericolo neonazi fascista e quindi il bisogno di antifascismo, ma non di antifascismo celebrativo, ben…
Europa a Sinistra

L’editoriale di Pietro Soldini.
Il 25 aprile è passato, per la seconda volta nel tempo del governo Meloni, ma non è passato il pericolo neonazi fascista e quindi il bisogno di antifascismo, ma non di antifascismo celebrativo, bensi' militante.Per fare un bilancio, occorre partire dalle due affermazioni più significative del governo, una per bocca della Meloni e l'altra per bocca di suo cognato, ma ispir
europeleft.it/2025/04/02/ledit
#Uncategorized

Europa a Sinistra · L’editoriale di Pietro Soldini.Il 25 aprile è passato, per la seconda volta nel tempo del governo Meloni, ma non è passato il pericolo neonazi fascista e quindi il bisogno di antifascismo, ma non di antifascismo celebrativo, ben…
Schneier on Security RSS

Rational Astrologies and Security

John Kelsey and I wrote a short paper for the Rossfest Festschrift: “Rational Astrolo... schneier.com/blog/archives/202

Schneier on Security · Rational Astrologies and Security - Schneier on SecurityJohn Kelsey and I wrote a short paper for the Rossfest Festschrift: “Rational Astrologies and Security“: There is another non-security way that designers can spend their security budget: on making their own lives easier. Many of these fall into the category of what has been called rational astrology. First identified by Randy Steve Waldman [Wal12], the term refers to something people treat as though it works, generally for social or institutional reasons, even when there’s little evidence that it works—­and sometimes despite substantial evidence that it does not...
#psychologyofsecurity#securitytheater#Uncategorized
Nordpol

Klimakollaps, Faschismus und verdammt was kann ich tun?

radio.nrdpl.org/2025/04/01/kli

Chapter A - Gespräch mit Arne Semsrott 

Die Zeiten sind beschissen. In Deutschland, Europa und weiteren Ländern der Welt erleben wir ein erstarken autoritärer und rechtsextremer Parteien und Bewegungen. Wir befinden uns - mal wieder - im Präfaschismus und dem Ende des uns b (...)

radio.nrdpl.orgKlimakollaps, Faschismus und verdammt, was kann ich tun? – radio nordpol
#RadioNordpol#Antifaschismus#Interview
Schneier on Security RSS

Cell Phone OPSEC for Border Crossings

I have heard stories of more aggressive interrogation of electronic devices at US border crossings. I know a lot about securing computers, but very little about securing phones.
Are there easy ways to delete data—files, photos, etc.&#... schneier.com/blog/archives/202

Schneier on Security · Cell Phone OPSEC for Border Crossings - Schneier on SecurityI have heard stories of more aggressive interrogation of electronic devices at US border crossings. I know a lot about securing computers, but very little about securing phones. Are there easy ways to delete data—files, photos, etc.—on phones so it can’t be recovered? Does resetting a phone to factory defaults erase data, or is it still recoverable? That is, does the reset erase the old encryption key, or just sever the password that access that key? When the phone is rebooted, are deleted files still available? We need answers for both iPhones and Android phones. And it’s not just the US; the world is going to become a more dangerous place to oppose state power...
#operationalsecurity#Uncategorized#cellphones
Europa a Sinistra

Il Giubileo, don Giovanni Franzoni ed Elon Musk: l’editoriale di Pietro Soldini.
Sono al terzo, ultimo per quanto mi riguarda, Giubileo (1975-2000-2025) e per parlare di Trump e Musk, voglio partire da lontano e dal punto di vista di un monaco benedettino che potrebbe essere l'esatto contrario rispetto a Musk ed alla sua genialità finalizzata al potere ed a
europeleft.it/2025/04/01/il-gi
#Uncategorized

Europa a Sinistra · Il Giubileo, don Giovanni Franzoni ed Elon Musk: l’editoriale di Pietro Soldini.Sono al terzo, ultimo per quanto mi riguarda, Giubileo (1975-2000-2025) e per parlare di Trump e Musk, voglio partire da lontano e dal punto di vista di un monaco benedettino che potrebbe essere l&…
Schneier on Security RSS

The Signal Chat Leak and the NSA

US National Security Advisor Mike Waltz, who started the now-infamous group chat coordinating a US attack against the Yemen-based Houthis on March 15, is seemingly now suggesting that the secure messaging service Signal has security vulnerabilitie... schneier.com/blog/archives/202

Schneier on Security · The Signal Chat Leak and the NSA - Schneier on SecurityUS National Security Advisor Mike Waltz, who started the now-infamous group chat coordinating a US attack against the Yemen-based Houthis on March 15, is seemingly now suggesting that the secure messaging service Signal has security vulnerabilities. "I didn’t see this loser in the group," Waltz told Fox News about Atlantic editor in chief Jeffrey Goldberg, whom Waltz invited to the chat. "Whether he did it deliberately or it happened in some other technical mean, is something we’re trying to figure out." Waltz’s implication that Goldberg may have hacked his way in was followed by a ...
#DepartmentofDefense#vulnerabilities#Uncategorized
Kit Author

Ranger’s Dilemma by Armanis Ar-feinial
Blurb

Protect the Goddess's forest. And protect all who dwell within.Those were the two oaths Teyerian swore to uphold when appointed to lead the rangers in their Guildmaster's absence. But when the king makes a pact with unknown forces and magical amulets which amplifies prowess with violent spellcasting, the elves of the forest go mad and turn against the Goddess, t
readerbarn.com/rangers-dilemma
#Uncategorized

Schneier on Security RSS

AIs as Trusted Third Parties

This is a truly fascinating paper: “Trusted Machine Learning Models Unlock Private Inference for Problems Currently Infeasible with Cryptography.” The basic idea is that AIs can act as tr... schneier.com/blog/archives/202

Schneier on Security · AIs as Trusted Third Parties - Schneier on SecurityThis is a truly fascinating paper: “Trusted Machine Learning Models Unlock Private Inference for Problems Currently Infeasible with Cryptography.” The basic idea is that AIs can act as trusted third parties: Abstract: We often interact with untrusted parties. Prioritization of privacy can limit the effectiveness of these interactions, as achieving certain goals necessitates sharing private data. Traditionally, addressing this challenge has involved either seeking trusted intermediaries or constructing cryptographic protocols that restrict how much data is revealed, such as multi-party computations or zero-knowledge proofs. While significant advances have been made in scaling cryptographic approaches, they remain limited in terms of the size and complexity of applications they can be used for. In this paper, we argue that capable machine learning models can fulfill the role of a trusted third party, thus enabling secure computations for applications that were previously infeasible. In particular, we describe Trusted Capable Model Environments (TCMEs) as an alternative approach for scaling secure computation, where capable machine learning model(s) interact under input/output constraints, with explicit information flow control and explicit statelessness. This approach aims to achieve a balance between privacy and computational efficiency, enabling private inference where classical cryptographic solutions are currently infeasible. We describe a number of use cases that are enabled by TCME, and show that even some simple classic cryptographic problems can already be solved with TCME. Finally, we outline current limitations and discuss the path forward in implementing them...
#machinelearning#academicpapers#Uncategorized
Schneier on Security RSS

AI Data Poisoning

Cloudflare has a new feature—available to free users as well—that uses AI to generate random pages to feed to AI... schneier.com/blog/archives/202

Schneier on Security · AI Data Poisoning - Schneier on SecurityCloudflare has a new feature—available to free users as well—that uses AI to generate random pages to feed to AI web crawlers: Instead of simply blocking bots, Cloudflare’s new system lures them into a “maze” of realistic-looking but irrelevant pages, wasting the crawler’s computing resources. The approach is a notable shift from the standard block-and-defend strategy used by most website protection services. Cloudflare says blocking bots sometimes backfires because it alerts the crawler’s operators that they’ve been detected. “When we detect unauthorized crawling, rather than blocking the request, we will link to a series of AI-generated pages that are convincing enough to entice a crawler to traverse them,” writes Cloudflare. “But while real looking, this content is not actually the content of the site we are protecting, so the crawler wastes time and resources.”...
#Uncategorized#spoofing#botnets
Bytes Europe

Eid al-Fitr is on 30 March 2025: Egypt Astronomy Institute Confirms byteseu.com/862295/ #Egypt #eID #holiday #News #Ramadan #uncategorized

Bytes Europe · Eid al-Fitr is on 30 March 2025: Egypt Astronomy Institute ConfirmsEgypt’s National Research Institute of Astronomy and Geophysics (NRIAG) announced on 21 March that Eid al-Fitr will fall on Sunday 30 March based on astronomical calculations. The date coincides with projections in several Arab countries, marking the end of Ramadan and the beginning of the Islamic month of Shawwal. In line with this announcement, Egypt has confirmed that the official Eid al-Fitr holiday will last for three days, from Sunday 30 March through Tuesday 1 April 2025. The break will apply to both the public and private sectors, covering government offices, banks, schools, and universities. NRIAG stated that the crescent
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