The State of Email Security Report
Actionable steps to improve your organization’s email security and cyber resilience.
To stop ransomware, you need superior email security.
Ransomware attacks involve gaining access to an organization's computer systems or data and holding them "hostage" by blocking access or encrypting data. Attackers allow organizations to get their data back only after making a payment, or "ransom."
Because ransomware attacks are often initiated via email, adopting solutions that block malicious URLs and weaponized attachments is one of the most effective ways to stop ransomware attacks. For organizations seeking affordable and easy-to-use solutions to stop ransomware threats, Mimecast offers comprehensive email security services.
Mimecast's all-in-one service for email security, continuity and archiving provides comprehensive protection to stop ransomware and other advanced targeted threats, while also addressing a host of other email security issues.
With Mimecast's cloud-based services, IT teams no longer need to deploy and manage multiple point solutions to defend against the growing universe of email threats. Mimecast's suite of email security services not only help to stop ransomware but also provide protection against malware, spam, wire transfer phishing andimpersonation attacks, data leaks and more. Using sophisticated detection engines, Mimecast services provide a multi-layered approach to security that is always on and always up-to-date, incorporating the latest in threat intelligence to stop known and emerging threats before they reach the network.
Mimecast Targeted Threat Protection helps stop ransomware attacks and provides phishing and spear phishing protection by scanning all email to identify and block the most common techniques for initiating targeted attacks.
Mimecast URL Protect blocks malicious URLs by scanning all links in inbound and archived email and preventing users from accessing the target site until it has been checked for malware.
Mimecast Attachment Protect helps to stop ransomware attacks by preventing employees from opening weaponized attachments. Mimecast can preemptively sandbox all attachments and check for malware or convert attachments to a safe format before delivering them to users.
Mimecast Impersonation Protect scans all email for signs of fraud and social engineering techniques that are common to ransomware attacks and other targeted threats. Attackers often pose as a trusted individual or a familiar contact in order to trick users into clicking a link or sharing. Mimecast identifies suspicious email and blocks it, quarantines it for review or sends it on with a warning, based on security policies set by administrators.
What is ransomware?
Ransomware is a form of malware that encrypts or blocks the files on an individual’s computer or a company’s server, preventing users from accessing the files until or unless a ransom is paid.
How to remove ransomware?
Removing ransomware requires any malicious files or emails to be deleted from a computer or network. The ability to successfully remove ransomware depends on the type of ransomware used in the attack. Certain forms of ransomware can be removed with tools that are easily available, while others may require the help of a security professional or firm.
How does ransomware work?
While it is constantly evolving, most ransomware today is spread through spam or phishing emails that encourage users to click a link or download an attachment. Ransomware can also be spread through websites, through drive-by downloads or via social media messaging. Once ransomware is established on a hard drive or server, it uses encryption to locks all the files that it can access. The malware then issues a message demanding a ransom, usually payable in cryptocurrency, to decrypt the files and restore access.
What to do when hit by ransomware?
When you detect ransomware, the first step is to prevent it from spreading by disconnecting all infected computers from the network and from any shared storage. Secondly, you should identify the type of ransomware that has infected your network and report it to authorities. Finally, you may try to recover your files without paying ransom by decrypting them – there are companies and tools that can help with this – or by wiping your system and restoring files from safe backup.
How to prevent ransomware?
Preventing ransomware requires a multi-layered approach to security. In addition to a strong firewall and antivirus software, you can block email containing ransomware by using content scanning and filtering. Maintaining an archive of email and file data helps to eliminate data loss should your servers become infected. And employing email continuity solutions can help to ensure productivity and continuous access to email, even during a ransomware attack.