Phone hacking is becoming an increasingly common practice. It occurs when criminals hack into business phone systems and make unauthorised calls to Premium Rate and International numbers. These attacks can result in extremely high costs if your phone system is un-monitored. They can also leave your business exposed and vulnerable to further attacks. And, with the added threat of Social Engineering (whereby criminals attack voicemail boxes to place call) the quantity and ferocity of attacks is only going to increase.
8 simple steps to prevent business phone hacking:
1: Make sure all employees change their voicemail password from the default manufacturer settings.
2: Change passwords from time to time, especially when employees leave the organisation.
3: Use strong passwords – at least 8 characters long, containing both upper and lower-case letters, numbers and special symbols – to make them less easy to guess.
4: Delete unused extensions and voicemails.
5: Make sure your system is programmed with Call Barring for non-essential Premium Rate and International numbers.
6: Limit call forwarding to known or internal numbers only.
7: Regularly review your call history and monitor call usage of individual users.
8: Use restrictive firewall rules to ensure they only respond to authorised clients within a given IP space.
Datasharp’s Added Extras
As one of our customers we’ll automatically register you for LineGuard – our free real-time fraud detection product. You can also apply the following additional security measures:
1. Set up your free “E-Alert” facility to alert you of unusual call patterns.
2. Install a low-cost Voice Firewall
3. Speak to our experts about RFC2827 Network Ingress Filtering to combat IP Source Address Spoofing.
Get In Touch
We are here to support your business so call us on 01872 266666 or email hello@datasharp.co.uk if you have any queries or would like more information on other advanced security measures that are available.
