Quantum Bit Error Rate Analysis in BB84 Quantum Key Distribution: Measurement, Statistical Estimation, and Eavesdropping Detection

Quantum Key Distribution QKD provides information-theoretic security by exploiting the principles of quantum mechanics. Among QKD protocols, the BB84 scheme remains the most widely adopted for both theoretical research and practical implementation. A critical parameter determining the reliability...

Active Localization of Close-Range Adversarial Acoustic Sources for Underwater Data Center Surveillance

Underwater data infrastructures offer natural cooling and enhanced physical security compared to terrestrial facilities, but are susceptible to acoustic injection attacks that can disrupt data integrity and availability. This work presents a comprehensive surveillance framework for localizing and...

A Comprehensive Survey on Underwater Acoustic Target Positioning and Tracking: Progress, Challenges, and Perspectives

Underwater target tracking technology plays a pivotal role in marine resource exploration, environmental monitoring, and national defense security. Given that acoustic waves represent an effective medium for long-distance transmission in aquatic environments, underwater acoustic target tracking h...

Chinese AI Submersible

A Chinese company has developed an AI-piloted submersible that can reach speeds "similar to a destroyer or a US Navy torpedo," dive "up to 60 metres underwater," and "remain static for more than a month, like the stealth capabilities of a nuclear submarine." In case you're worried about the...

On the Vulnerability of Underwater Magnetic Induction Communication

Typical magnetic induction MI communication is commonly considered a secure underwater wireless communication UWC technology due to its non-audible and non-visible nature compared to acoustic and optical UWC technologies. However, vulnerabilities in communication systems inevitably exist and may...

Friday Squid Blogging: 1994 Lair of Squid Game

I didnt know: In 1994, Hewlett-Packard released a miracle machine: the HP 200LX pocket-size PC. In the depths of the device, among the MS-DOS productivity apps built into its fixed memory, there lurked a first-person maze game called Lair of Squid. … In Lair of Squid, youre trapped in an underwat...

North Korean Hackers Weaponize Fake Research to Deliver RokRAT Backdoor

Media organizations and high-profile experts in North Korean affairs have been at the receiving end of a new campaign orchestrated by a threat actor known as ScarCruft in December 2023. "ScarCruft has been experimenting with new infection chains, including the use of a technical threat research...

Liquidation condition should not factor the liquidation reward into the premiums

Lines of code Vulnerability details Summary The premiums used to determine the liquidation condition have the liquidation reward already discounted, potentially causing a lien to be considered underwater while technically it is not. Impact Positions in Particle LAMM can be liquidated if the owed...

Friday Squid Blogging: Underwater Sculptures Use Squid Ink for Coloring

The Molinière Underwater Sculpture Park has pieces that are colored in part with squid ink. As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered. Read my blog posting guidelines here...

totalBorrows is not deducted properly when Comptroller#healAccount is called

Lines of code Vulnerability details Impact TotalBorrowed in VToken is not accounted properly when healAccount is called. Proof of Concept ComptrollerhealAccount intends to forgive the debt of the account if the debt goes far too underwater. When that happens, the collateral is seized, some of the...

The Most Vulnerable Place on the Internet

Underwater cables keep the internet online. When they congregate in one place, things get tricky...

Fee double counting for underwater positions

Handle hyh Vulnerability details Impact Actual available fees are less than recorded. That's because a part of them corresponds to underwater positions, and will not have the correct amount stored with the contract: when calculation happens the fee is recorded first, then there is a check for...

isUnderwater returns opposite boolean for short positions

Handle harleythedog Vulnerability details Impact The function isUnderwater should return true iff the position value is 0. In the case of a short position, this is when oi 2 - priceFrame - debt 0 based on the logic given in the value function. Rearranging this equation, a short position is...

Report: Danish Secret Service Helped NSA Spy On European Politicians

The U.S. National Security Agency NSA used a partnership with Denmark's foreign and military intelligence service to eavesdrop on top politicians and high-ranking officials in Germany, Sweden, Norway, and France by tapping into Danish underwater internet cables between 2012 and 2014. Details of t...

Friday Squid Blogging: Underwater Cameras for Observing Squid

Interesting research paper. As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered. Read my blog posting guidelines here...

Friday Squid Blogging: Underwater Robot Uses Squid-Like Propulsion

This is neat: By generating powerful streams of water, UCSDs squid-like robot can swim untethered. The "squidbot" carries its own power source, and has the room to hold more, including a sensor or camera for underwater exploration. As usual, you can also use this squid post to talk about the...

Aqua-Fi – New optical networks can deliver Internet underwater

By Deeba Ahmed Aqua-Fi is a technology based on lights and laser beams. This is a post from HackRead.com Read the original post: Aqua-Fi - New optical networks can deliver Internet underwater...

Friday Squid Blogging: Squid-Like Underwater Drone

The Sea Hunting Autonomous Reconnaissance Drone SHARD swims like a squid and can explode on command. As usual, you can also use this squid post to talk about the security stories in the news that I haven't covered. Read my blog posting guidelines here...

Friday Squid Blogging: Researchers Investigating Using Squid Propulsion for Underwater Robots

Interesting article and paper. As usual, you can also use this squid post to talk about the security stories in the news that I haven't covered. Read my blog posting guidelines here...

Friday Squid Blogging: Did Super-Intelligent Giant Squid Steal an Underwater Research Station?

There's no proof they did, but there's no proof they didn't. As usual, you can also use this squid post to talk about the security stories in the news that I haven't covered. Read my blog posting guidelines here...