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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
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-qt-user-state:0;"><!--StartFragment-->Hello OpenSIPS community,</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
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-qt-user-state:0;">When was the last time when your users were
hijacked and scammed? We know for sure when it will be the last
time - NOW! For those of you familiar with the major problem in
the VoIP world, we have good news: OpenSIPS 2.1 can now detect and
prevent those attacks through it’s fraud detection module!</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">Fraud is a major problem nowadays and it is
more complex as it depends on the end-user/end-device security
level. And all the VoIP providers are looking forward for ways to
protect their users and avoid the blame.</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
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-qt-user-state:0;">For recognizing an attack, the Fraud Detection
module defines profiles. A profile is a set of five parameters
that together decide when an user account is hijacked:</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;"> * Total number of calls - maximum number of
incoming calls (in a given time frame) before considering the
accounted hijacked</p>
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margin-bottom:0px; margin-left:0px; margin-right:0px;
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</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;"> * Number of calls per minute - maximum number
of CPS before considering the user account hijacked</p>
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margin-bottom:0px; margin-left:0px; margin-right:0px;
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;"> * Number of concurrent calls - maximum number
of parallel calls the user can have without being considered
hijacked</p>
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margin-bottom:0px; margin-left:0px; margin-right:0px;
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</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;"> * Number of sequential calls - maximum number
of consecutive calls to the same destination before the user
account is considered hijacked</p>
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margin-bottom:0px; margin-left:0px; margin-right:0px;
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;"> * Call duration - maximum duration of a call
before being considered a potential fraud</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">Each user gets assigned a profile and OpenSIPS
will update and evaluate the profile for each incoming call of
that user. The Fraud Detection will keep trace of the user’s
calls, of their parameters and how their are fitting into the
user’s profile. Whenever a threshold for one of these parameters
is hit, you will be noticed either through a return code or
through an event.</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">A quick start tutorial is already available[1]</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">The module documentation can be found at[2]</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">Please do not hesitate to provide any feedback,
comments, reports or questions in regards to this new module.</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
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-qt-user-state:0;">[1]<a class="moz-txt-link-freetext" href="http://www.opensips.org/Documentation/Tutorials-FraudDetection-2-1">http://www.opensips.org/Documentation/Tutorials-FraudDetection-2-1</a></p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">[2]<a class="moz-txt-link-freetext" href="http://www.opensips.org/html/docs/modules/2.1.x/fraud_detection.html">http://www.opensips.org/html/docs/modules/2.1.x/fraud_detection.html</a>
</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">Regards,</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">Andrei Datcu<!--EndFragment--></p>
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