Blog Posts Tagged with "PBX"


Follow Up to the Out of Band Authentication Post

May 16, 2012 Added by:Brent Huston

Sadly, there are more than a few who are struggling to get OOBA right or done at all. As with most things, it helps to do a little research. Organizations should perform due diligence on their vendors and factor vendor risks into the equation of purchases and project planning...

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Financial Organizations Struggle with Out of Band Authentication

May 09, 2012 Added by:Brent Huston

Financial organizations have been working on implementing out of band authentication (OOBA) mechanisms for specific kinds of money transfers such as ACH and wires. While this authentication method does add some security to the process, it does not come without its challenges...

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Prevent VoIP Toll Fraud with Proper Configurations

February 22, 2012 Added by:Enno Rey

Unfortunately the attacker was able to circumvent our first workaround. We discovered that it was possible to “dial-in” to the router directly by calling the head number. As a long-term solution the configured dial patterns have to be modified to prevent such things in the future...

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Why Fail2Ban Can Fail With VoIP

January 26, 2011 Added by:J. Oquendo

So an attacker launched a scan, who cares, it happens and even if I outright blacklist him, odds are, he is on a throwaway address or compromised host. Nevertheless he scans. At some point in time, he WILL come across the honeypot I left in plain sight for him...

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