Companies today deal with all kinds of risks to their networks, like phishing emails, malware, ransomware, insider threats, and outdated systems. Phishing is especially dangerous since it tricks employees into giving away passwords or sensitive info. Old or unpatched software also makes it easy for hackers to break in. To prevent this, companies should use strong security measures like multi-factor authentication, regular updates, and cybersecurity training for staff. Firewalls, network monitoring, and data backups also go a long way in keeping systems safe. The best defense is staying proactive by mixing good technology, smart policies, and educated users to stay ahead of potential attacks.