Common signs of an impending cyber attack?

Anomalous Network Activity

Unusual network activity is often a sign that an attacker has gained access to your system or is probing for vulnerabilities. Look for sudden spikes in traffic, especially during off-peak hours, or unusual protocol usage. For example, if your organization typically uses HTTPS for 90% of its traffic, a sudden increase in FTP or SSH connections may indicate an attacker trying to gain access to sensitive data.

Unexplained System Changes

Unexplained system changes can be a sign that an attacker has compromised your system. This may include new user accounts, modified system configurations, or installed malware. To detect these changes, implement a robust monitoring system that checks for and alerts on suspicious activity, such as changes to system settings, user accounts, or installed software. For example, you can use a tool like Tripwire to monitor file integrity and detect changes to critical system files.

Login Attempt Spikes

Sudden spikes in login attempts can be a sign that an attacker is trying to brute-force their way into your system. To prevent this, implement strong password policies and consider implementing a Captcha or rate-limiting login attempts. For example, you can use a tool like Fail2Ban to monitor login attempts and block IP addresses that exceed a certain threshold of failed attempts. By monitoring these indicators, you can stay one step ahead of potential threats and prevent a cyber attack from occurring.