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Forget Wi-Fi This Laser Tech Hits 360 Gbps at Half the Power

A new laser-powered wireless system uses light to deliver data at speeds exceeding 360 Gbps. It could enable faster, more efficient indoor networks while reducing interference and energy use.

Modern life runs on fast, reliable wireless connections. Video calls, streaming, virtual reality, and connected devices all depend on networks that already support billions of users. Most of this data travels over radio-based systems like Wi-Fi and cellular networks. These technologies have powered decades of growth, but they are running into limits. Radio spectrum is becoming crowded, signals can interfere with each other in busy indoor spaces, and energy use keeps rising as more devices come online.

Using light instead of radio waves.

A Transparent Waveguide for Sound

Acoustic waves can be guided through a narrow “tunnel” that lacks walls and thus presents no obstruction to sound traveling across its path.

Researchers have devised a “ghost tunnel”—a nearly perfect waveguide for sound that allows other sound waves to pass across its path undisturbed [1]. The tunnel is essentially invisible to external waves. The researchers expect the 2D acoustic structure to find use in situations such as complex sonar devices, where multiple signal channels must cross without interacting.

The hard walls of metal pipes and other ordinary waveguides keep sound trapped inside, but they also present obstructions that scatter external sound waves. This scattering can be a major problem in environments such as integrated acoustic circuits or sonar applications, where sound waves are propagating in multiple directions outside of waveguides. These nonguided waves can potentially suffer from signal-clarity degradation.

Researchers Uncover Mining Operation Using ISO Lures to Spread RATs and Crypto Miners

As recently observed in the FAUX#ELEVATE campaign, “WinRing0x64.sys,” a legitimate, signed, and vulnerable Windows kernel driver, is abused to obtain kernel-level hardware access and modify CPU settings to boost hash rates, thereby enabling performance improvement. The use of the driver has been observed in many cryptojacking campaigns over the years. The functionality was added to XMRig miners in December 2019.

Elastic said it also identified another campaign that leads to the deployment of SilentCryptoMiner. The miner, besides using direct system calls to evade detection, takes steps to disable Windows Sleep and Hibernate modes, set up persistence via a scheduled task, and uses the “Winring0.sys” driver to fine-tune the CPU for mining operations.

Another notable component of the attack is a watchdog process that ensures the malicious artifacts and persistence mechanisms are restored in the event they are deleted. The campaign is estimated to have accrued 27.88 XMR ($9,392) across four tracked wallets, indicating that the operation is yielding consistent financial returns to the attacker.

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