OpenSSH might be a bit more popular than Ossec. We know about 1 link to it since March 2021 and only 1 link to Ossec. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I'd take it one step further and install OSSEC as well. It can be configured to run as a local daemon and report suspicious activity, and also intervene. So if somebody is brute-forcing the login on your web page, it'll create a burst of 401s which OSSEC will detect in the logs and block the offender for X minutes/hours. Source: over 2 years ago
I haven't found a clear answer to this. After checking openssh.com I haven't found any mention. Source: over 1 year ago
snort - Snort is a free and open source network intrusion prevention system.
Microsoft BitLocker - BitLocker is a full disk encryption feature included with Windows Vista and later.
McAfee Network Security Platform - McAfee Network Security Platform guards all your network-connected devices from zero-day and other attacks, with a cost-effective network intrusion prevention system.
Symantec Data Loss Prevention - Fully protect your data with the comprehensive detection technologies and unified policies of Symantec's industry leading Data Loss Prevention (DLP).
AlienVault USM (from AT&T Cybersecurity) - AlienVault USM Anywhere delivers powerful threat detection, incident response, and compliance management for cloud, on-premises, and hybrid environments.
Paubox - Paubox provides HIPAA compliant email encryption without the hassle of extra steps.