There are many reasons you might want to protect an Excel worksheet with Read-only mode. Maybe you don't want someone to erase data from a workbook accidentally, or you want to make sure a file is not ...

You may have gotten an Excel file from someone, but you’re not able to edit it due to a strange Read-only notification. There are several ways to get around this problem, and like always, we are going ...

Attackers can attempt to hide malicious payloads in Excel files sent by e-mail by using a standard Excel feature, according to a Tuesday post by Mimecast researchers. It turns out that automatic ...

We've got a use case where we have ~40 users with Office 365 essentials licenses (so no locally installed Office apps) who need read-only access to a few Excel files. They need to be able to open the ...

Researchers from Mimecast reported this week that attackers are hiding malicious payloads in Excel files sent by e-mail by using a standard Excel feature. It turns out that automatic encryption of ...

Researchers from Mimecast have recently observed a campaign where threat actors are using a somewhat rarely seen but easy method to distribute malware using Microsoft Excel's standard file encryption ...

Usually, if you share an Excel spreadsheet with someone, that person is able to freely edit the spreadsheet. In some cases, you may want to send someone a spreadsheet with data but you also want to ...

A new campaign is spreading the LimeRAT Remote Access Trojan by harnessing an old encryption technique in Excel files. In addition, the modular Trojan can spread through connected USB drives, ...

An old RAT learns an old trick. Researchers have discovered a fresh campaign using Excel files to spread LimeRAT malware – making use of the hardcoded, VelvetSweatshop default password for encrypted ...