Abstract: This paper proposes an image encryption-decryption scheme with two-layer security. In the first layer, an image is encrypted by a switched system, using the concept from control theory. Also ...

Face, finger or lock-screen code: These passkeys are all you will need to encrypt your WhatsApp chat backups in the near future, the messaging app announced Thursday. Meta-owned WhatsApp, the most ...

Binary black holes have been big news in astronomy for a while now, but that's primarily due to their role as the targets of gravitational wave detectors. They've been proven to exist, but, as with so ...

Options traders buy more downside protection after the crypto’s largest liquidation event, Decrypt was told. Bitcoin’s $115,000, $95,000, and Ethereum’s $4,000, $3,600 strikes are seeing a high demand ...

Astronomers have delivered the first image of two orbiting supermassive black holes. Credit: Mauri J. Valtonen et al. / https://doi.org/10.48550/arxiv.2510.06744 ...

"For the first time, we managed to get an image of two black holes circling each other," study first author Mauri Valtonen, an astronomer at the University of Turku in Finland, said in a statement.

New versions of the XWorm backdoor are being distributed in phishing campaigns after the original developer, XCoder, abandoned the project last year. The latest variants, XWorm 6.0, 6.4, and 6.5, ...

Abstract: The paper introduces a deep decryption method based on chaotic ghost imaging, termed Chaotic Ghost Imaging with Deep Decryption (CGI-DD). Utilizing chaotic sequences generated by the Hénon ...