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Researchers from the University of Glasgow have developed a new type of heat pump, a flexible heat pump technology, which could help households save on their energy bills and contribute towards net-zero emissions goals.

Heat pumps are a low-carbon alternative to gas boilers. They draw energy from external low temperature sources, most commonly outdoor air, in order to indoor spaces. When powered by renewable sources of power, they are significantly more environmentally friendly than conventional gas boilers.

Around the world, about 40% of carbon emissions come from heating powered by . The U.K. Government has set a target for 600,000 heat pump installations per year by 2028 in order to reduce the country’s carbon footprint.

The health department reiterated that it is still investigating the virus’ origin, and said that it is not yet clear whether the infected person in Rockland County was linked to the other cases.

Polio is “a serious and life-threatening disease,” the state health department said. It is highly contagious and can be spread by people who aren’t yet symptomatic. Symptoms usually appear within 30 days of infection, and can be mild or flu-like. Some people who are infected may become paralyzed or die.

Before the polio vaccine was introduced in the 1950s, thousands of Americans died in polio outbreaks and tens of thousands, many of them children, were left with paralysis. After a successful vaccination campaign, polio was officially declared eradicated in the U.S. in 1979.

Twitter has confirmed a recent data breach was caused by a now-patched zero-day vulnerability used to link email addresses and phone numbers to users’ accounts, allowing a threat actor to compile a list of 5.4 million user account profiles.

Last month, BleepingComputer spoke to a threat actor who said that they were able to create a list of 5.4 million Twitter account profiles using a vulnerability on the social media site.

This vulnerability allowed anyone to submit an email address or phone number, verify if it was associated with a Twitter account, and retrieve the associated account ID. The threat actor then used this ID to scrape the public information for the account.

Security researchers at Zscaler’s ThreatLabz group have discovered a new strain of a large-scale phishing campaign, which uses an adversary-in-the-middle (AiTM) attack technique capable of bypassing multi-factor authentication (MFA).

For the unversed, AiTM attack is a cyberattack where the attacker secretly conveys and possibly alters the communications between two parties who believe that they are directly communicating with each other, as the attacker has inserted themselves between the two parties. Hackers through this method can use the stolen cookies to log in and completely evade MFA.

The main purpose of the large-scale phishing campaign is believed to be breaching of corporate accounts to conduct BEC (business email compromise) attacks, which redirects payments toward the hacker’s bank account using forged documents, as reported by BleepingComputer.

We live in a time where great software is available with the click of a mouse, often for free or — at least — low cost. But there’s a problem: how do you select from so many alternatives? We were interested in [Lee Teschler]’s review earlier this year of 30 free circuit simulators. If you are selecting one or don’t like the one you are currently using, it is well worth the time to review.

There are several on the list that you’ve probably heard of before like GNUCap and LTspice. There are also some lesser-known products. Some of those are just trial or student versions of paid products. Some are branded versions of commercial products (like Tina) or were made free after selling for higher price tags (like MicroCap 12).

Old favorites like Falstad (which is apparently known as Circuit Sims) and TinkerCAD made the list. Many of the trial versions were very limited. For example, DCAClab only provides an NPN bipolar transistor model. Proteus doesn’t let you save or print unless you pay. While the list includes TI’s Tina, it doesn’t seem to mention that TI also provides a free version of PSpice which is a very popular professional product.