How to Prevent Phishing Attacks
Phishing attacks remain one of the most successful cyber attack methods used against businesses. A single malicious email can lead to account compromise, financial loss, ransomware infection or data breaches.
Understanding how phishing works and implementing effective controls can significantly reduce your organisation’s cyber risk.
Request Free Security Review
What Is a Phishing Attack?
A phishing attack is a fraudulent email, message or communication designed to trick individuals into revealing passwords, financial information or sensitive business data.
Attackers often impersonate trusted organisations, suppliers, banks, Microsoft, HMRC or senior company executives.
Common Signs of a Phishing Email
- Unexpected requests for passwords.
- Urgent payment instructions.
- Suspicious attachments.
- Links to unfamiliar websites.
- Poor spelling and grammar.
- Unexpected invoices.
- Requests to bypass normal procedures.
- Messages creating urgency or fear.
10 Ways to Prevent Phishing Attacks
1. Enable Multi-Factor Authentication
Even if a password is stolen, MFA can prevent attackers from accessing accounts.
2. Implement Email Security Controls
Use SPF, DKIM and DMARC to reduce email spoofing and impersonation attacks.
3. Train Employees Regularly
Staff awareness remains one of the most effective phishing defences.
4. Verify Payment Requests
Always confirm banking changes and payment requests through a separate communication channel.
5. Protect Microsoft 365 Accounts
Review administrator privileges, Conditional Access policies and login activity.
6. Use Strong Password Policies
Prevent password reuse and encourage password manager adoption.
7. Block Malicious Attachments
Deploy advanced email filtering and attachment scanning technologies.
8. Restrict Administrator Accounts
Limit privileged access to only those who genuinely require it.
9. Monitor Suspicious Activity
Review login activity, failed login attempts and unusual user behaviour.
10. Conduct Regular Security Reviews
Regular audits help identify weaknesses before attackers exploit them.
What Happens If a User Clicks a Phishing Link?
If an employee clicks a phishing link, immediate action can significantly reduce the impact.
- Reset passwords immediately.
- Revoke active sessions.
- Review login activity.
- Enable MFA if not already enabled.
- Check mailbox rules.
- Investigate unauthorised access.
- Review administrator accounts.
- Assess wider business impact.
Concerned About Phishing Risks?
Most phishing attacks exploit weaknesses that can be identified and addressed before an incident occurs. A cyber security review can help strengthen your defences and reduce business risk.
Book a free Cyber Security Health Check and discover how AceGuard can help protect your organisation.
Get Free Security Review