attackers

The average ransomware attack now takes less than a day from first breaching a system. It's the first time average attacks can be measured in hours, though ironically it may be a sign of better defenses. The figures comes from researchers at ... Secureworks, who analyze ransomware attacks. They measure dwell time, which is the period between an attacker first gaining access to a system and deploying the ransomware. That's malware which encrypts files, letting the attackers demand a fee to restore access. The average dwell time being under a day is a dramatic development as last year the average ... (view more)

The number of 0-day bugs, which give hackers a dangerous advantage, fell in 2022 according to Google. However, the company warns this may risk misleading complacency that forgets other factors. The figures come from Google's Threat Analysis Group, ... which aims to track, identify and report security bugs, regardless of the software or hardware concerned. The logic is that the better Internet security is overall, the better it is for an Internet-dependent business such as Google. For the past nine years, it's put together an annual tally of 0-day bugs. While definitions vary, Google classes them ... (view more)

Google will stop some of its employees accessing the Internet. It's a bold experiment to see if it can reduce security threats without affecting performance. The idea is reduce the risk of hackers getting access to employee machines, either to get ... hold of data on those machines or to use them as an entry point into Google's network. Perhaps unsurprisingly, Google's internal data is particularly attractive to attackers, whether they are seeking financial gain, political or commercial advantage, or plain old mischief making. For example, attackers being able to find out how Google ranks ... (view more)

At least half the zero-day bugs discovered by Google this year were preventable according to one of its security experts. She pointed to sloppiness by software developers. The claims came in a talk and subsequent blog post by Maddie Stone. She's ... part of Google's Project Zero security program. While precise definitions sometimes vary, the general principle of a zero-day bug is that it's where attackers are exploiting the vulnerability before the software developers have a chance to develop a fix - in most cases because they aren't even aware of the bug. The name comes from the way the ... (view more)

Two separate reports point to a spike in zero-day bugs . That's when would-be attackers trying to exploit a bug have a head-start over developers who are trying to fix and patch it. When software developers discover a security vulnerability (or are ... told about it by responsible researchers), they are in a race against time to find and roll out a fix before attackers discover it and start trying to take advantage. Often they'll only have a matter of days. A zero-day bug is defined as one whose existence is (or was) discovered by hackers before it is known to the software developers. That means ... (view more)

Users of popular password manager tool LastPass have reported worrying emails that suggest their master passwords have been compromised. LastPass says the emails may have been sent mistakenly and that it has no evidence of any security breach. Like ... most such tools, LastPass let users create a single memorable password, the name coming from the idea it's the "last password" users will ever need to remember. This password is necessary to unlock a private vault of stored encrypted passwords for other sites. One of the big keys to the service is that LastPass itself has no access to the master ... (view more)

A new ransomware variant takes advantage of a Microsoft Excel feature. It's a good reminder to keep security software up-to-date. The variant has been reported by security company Lastline. It involves a known ransomware called Paradise that ... operates in the familiar fashion: the attackers find a way to get remote access to a computer then encrypt files and demand a fee to restore access - sometimes in the tens of thousands of dollars, or much higher. In this case, the attackers try to trick victims into opening a file attachment that creates the opening for accessing the machine. The ... (view more)

Most people know not to open an executable file or document attached to an email unless they were expecting it. But a new example of malware means even an audio file could trigger a payload. Researchers at Blackberry Cylance Threat recently ... uncovered malicious code hidden inside WAV files. That's a computer format for audio that was common for music on PCs before MP3 became established. The attackers are using a technique called steganography, which is a way to hide a file inside another file in a way that normally cannot be detected. Steganography has previously been used in image files, and ... (view more)

An estimated one million people around the world received a recent phishing email, though it only posed a risk for around an hour before Google stepped in to stop the scam in its tracks. Victims of the scam may have inadvertently given attackers ... control of their email accounts. The attack involved a bogus email claiming that a contact tried to share a document with the recipient using Google Docs. While only a small proportion of people use Google Docs, the attackers appear to have been playing the numbers game. Attackers Accessed Emails and Contacts Unlike most phishing scams, the attackers ... (view more)

The IRS has revealed that cyber attackers managed to trick its system in handing over more than 100,000 access codes for user accounts. Fortunately the breach was discovered before any sensitive data was compromised. The attack followed a data theft ... from a source outside of the IRS. The agency hasn't revealed what that was, but it appears to have involved a stolen list that included social security numbers. The attackers then set an automated program, or "bot" to work. Using stolen social security numbers (sourced from outside the IRS), the bot was used to generate E-file PINs ... (view more)