
In Australia, over the last few years, there has been an increase in PABX hacking and it can be a massive problem that could leave you $1000’s of dollars out of pocket. VoIP Phone system Melbourne hacking is typically instigated by overseas scumbags (and I use this word lightly) that are exploiting well-known weaknesses in phone systems locally, to help you prevent phone system hacking.
There are many other ways to safeguard your phone from hacking:
- Don't use default voicemail PIN numbers
- Take out voicemails that are not being used by staff who have left etc.
- Call forwarding can be canceled or outbound call capability by removing your voicemail entirely.
- Verify that you're not using the default admin password of PABX.
- Completely stop all after-hours calls with the exception of the emergency numbers.
- You should disable DISA access unless it is absolutely essential.
- Examine your phone bills for weekends, after-hours holidays, and odd numbers being used.