Why small businesses are frequent targets

There's a myth that hackers are only interested in large companies. The truth is the opposite: small and medium businesses are the perfect target because they hold valuable data (financial information, client data, confidential documents), but don't have dedicated IT security teams.

The most common threats we encounter with business clients in Belgrade: ransomware (malware that encrypts all data and demands a ransom), phishing (fake emails that trick employees into revealing passwords), and unauthorized network access through poorly configured WiFi or weak router passwords.

Basic business network protection

  • Change router default settings — factory router passwords are publicly available online. Every router must have a unique, strong administrative password.
  • Separate guest network — clients and visitors should never be on the same WiFi network as your business systems. The guest network must be completely isolated.
  • WPA3 or WPA2 encryption — never WEP or an open network. The WiFi password must be long and complex.
  • Firewall on all computers — Windows Firewall must be enabled and up to date on all business computers.
  • Antivirus protection — on every computer, updated, with centralized management.

Advanced protection for higher requirements

  • Business firewall/router — home routers lack the capabilities business networks require. Business routers (Mikrotik, Fortinet, Sophos) have advanced traffic inspection and threat blocking.
  • VLAN segmentation — splitting the network into segments (office, server, IoT devices) so that compromising one segment doesn't threaten the entire network.
  • VPN for remote access — employees working from home should access business systems exclusively through VPN, never directly over the internet.
  • Two-factor authentication — for all business accounts that support it: email, cloud storage, system management.

Most important point: Security is not a one-time action — it's a continuous process. A network that was well protected a year ago may not be today, because threats have evolved and software hasn't been updated.

Basic network security checklist

  • Routers have changed factory settings and strong passwords
  • Guest WiFi network is separated from the business network
  • All computers have up-to-date antivirus software
  • Windows Update is enabled on all computers
  • Remote employees use VPN
  • There is a backup that is tested at least once a month
  • Business accounts have two-factor authentication

Conclusion

Network security for small businesses is neither expensive nor complicated — but it requires a systematic approach. Basic protection can be implemented in a few hours and reduces the risk of most common attacks by more than 90%.

If you're not sure how protected your network is, contact us. We conduct a security review and give you a concrete report with priorities.