US Issues Warning After Microsoft Says China Hacked Its Mail Server Program

An anonymous reader quotes a report from NBC News: The U.S. has issued an emergency warning after Microsoft said it caught China hacking into its mail and calendar server program, called Exchange. The perpetrator, Microsoft said in a blog post, is a hacker group that the company has “high confidence” is working for the Chinese government and primarily spies on American…

Astronomers identify faint radio-jets in the galaxy cluster CLJ1449+0856

Using ground-based facilities and space telescopes, an international team of astronomers has conducted multiwavelength observations of a galaxy cluster known as CLJ1449+0856. The observational campaign detected multiple faint radio-jets, what could shed more light on the nature of this cluster. The finding is reported in a paper published February 23 on the arXiv pre-print server. Source: https://phys.org/news/2021-03-astronomers-faint-radio-jets-galaxy-cluster.html…

Introducing Crowdsec: a Modernized, Collaborative Massively Multiplayer Firewall

Slashdot reader b-dayyy writes: CrowdSec is a massively multiplayer firewall designed to protect Linux servers, services, containers, or virtual machines exposed on the Internet with a server-side agent. It was inspired by Fail2Ban and aims to be a modernized, collaborative version of that intrusion-prevention tool. CrowdSec is free and open-source (under an MIT License), with the source code available on GitHub….

Brave Privacy Bug Exposed Tor Onion URLs To Your DNS Provider

Brave Browser had a privacy issue that leaked the Tor onion URL addresses you visited to your locally configured DNS server, “exposing the dark web websites you visit…”, writes Bleeping Computer. Long-time Slashdot reader AmiMoJo quotes their report: To access Tor onion URLs, Brave added a “Private Window with Tor” mode that acts as a proxy to the Tor network. When…

SolarWinds’ Former CEO Blames Intern for ‘solarwinds123’ Password Leak

“Current and former top executives at SolarWinds are blaming a company intern for a critical lapse in password security that apparently went undiagnosed for years,” reports CNN. The password in question, “solarwinds123,” was discovered in 2019 on the public internet by an independent security researcher who warned the company that the leak had exposed a SolarWinds file server… It is still…

Astronomers detect new super-Earth exoplanet orbiting nearby star

Using the radial velocity (RV) technique, astronomers have discovered a new super-Earth alien world as part of the HADES and CARMENES programs. The newfound exoplanet, designated GJ 740 b, orbits a bright star some 36 light-years away and is at least three times more massive than the Earth. The finding is reported in a paper published February 18 on the arXiv…

Ultraluminous X-ray pulsar M51 ULX-7 inspected by researchers

Using NASA’s Swift and Chandra space observatories, astronomers have investigated an ultraluminous X-ray pulsar known as M51 ULX-7. The study, detailed in a paper published February 16 on the arXiv pre-print server, sheds more light on the X-ray variability of this source. Source: https://phys.org/news/2021-02-ultraluminous-x-ray-pulsar-m51-ulx-.html…

Google Finally Adds iOS Privacy Labels To Gmail

Google today quietly added App Privacy labels to its Gmail app, marking the first of its major apps to receive the privacy details aside from YouTube. From a report: Though App Privacy information has been added to Gmail, Google has done so server side and has yet to issue an update to the Gmail app. It has been two months since…

Ultramassive black hole in NGC 1600 investigated in detail

Using NASA’s Chandra X-ray observatory, astronomers from the University of Alabama in Huntsville have investigated the central region of the galaxy NGC 1600, focusing on its ultramassive black hole (UMBH). Results of the study, presented in a paper published February 11 on the arXiv pre-print server, shed more light on the properties of this UMBH. Source: https://phys.org/news/2021-02-ultramassive-black-hole-ngc.html…

Sophisticated New Malware Found on 30,000 Macs Stumps Security Pros

Long-time Slashdot reader b0s0z0ku quotes Ars Technica:
A previously undetected piece of malware found on almost 30,000 Macs worldwide is generating intrigue in security circles, which are still trying to understand precisely what it does and what purpose its self-destruct capability serves. Once an hour, infected Macs check a control server to see if there are any new commands the malware should…