This is a quick and dirty video documentary of the things that when on around the talks and event at Phreaknic 12 (2008). Don't watch if you get sick at shaky cam movies like Blair Witch or Cloverfield. A rough timeline of the content in the video is as follows:

        Intro and leaving Louisville with Brian. Morgellon talks about hacking the Arduino micro controller platform. Sorteal talks about the LiVes Open Source video editor. AT&T Batman building by night. Mojo-JoJo soldering some stuff for the shooting range. The patron gods of hackerdom. Registration. Con swag overview. Morgellon  gets his discreet logic on. AK-47 building with HandGrip and Buttstock. Froggy talks up Notacon, which I plan to go to next year. Skydog explains the Jware chair toss event, and then we compete. Rootwars hacker wargames. I ask Int80 about using his nerdcore music in some of my videos. NotLarry explains rootwars. Some iPhone hacking with Lee Baird and John Skinner. I do a little Bluecaseing/Warnibbling with the Bluetooth on my Nokia n810. John, Lee, Brian and I go to the German restaurant. I blind DOSman with the light from my camera and check out what folks are doing with the Arduinos Droops brought for folks to play with. I check back in on R00tW4rz. I blind Droops. I talk Ettercap filters with operat0r. USB door key fun with the Arduino. More breadboard fun. Nokia n810 + Ettercap Filter + Lemon-part = win. Int80 gets down with his own bad self, and the rest of Phreaknic. I find an energy drink with protein. Folks play with the hardware keyloggers I brought, and we have some epic fail with the IBM Model M + USB adapter + Mac OS 10.5. Winn Schwartau joins in on the keylogger fun. DOSman and Zack use a directional antenna from the 9th floor to search downtown Nashville for WiFi access points. Zoom in on Al. John and Lee eat jerky. Daren and Shannon from Hak5 blind me this time. :) Then they do a quick interview. I interview TRiP about the legalities of wardriving, sniffing and leaving your access point open so you have plausible deniability of copyright infringement (most likely it won't hold water in court if you are a computer geek). I give Hak5 Daren beef jerky. Ziplock had more con badges than God. I meet up with Iridium. I talk with Nightcarnage about the audio/video setup at Phreaknic. As I predicted, the Potters won the WiFi Race. I say why this was the best Phreaknic ever. Using green lasers on crack dealers. Techno in the dark, the Aiptek action HD does not do well in low light. Nicodemius shows off his Minority Report like multi-touch table. Hula hoop contest. I check back in with Jeff Cotton and his USB keyed door. I strap on my gear to leave the con. Brian and I do a wrap up of our thoughts on Phreaknic 2008.

This is a quick and dirty video documentary of the things that when on around the talks and event at Phreaknic 12 (2008). Don't watch if you get sick at shaky cam movies like Blair Witch or Cloverfield. A rough timeline of the content in the video is as follows:

        Intro and leaving Louisville with Brian. Morgellon talks about hacking the Arduino micro controller platform. Sorteal talks about the LiVes Open Source video editor. AT&T Batman building by night. Mojo-JoJo soldering some stuff for the shooting range. The patron gods of hackerdom. Registration. Con swag overview. Morgellon  gets his discreet logic on. AK-47 building with HandGrip and Buttstock. Froggy talks up Notacon, which I plan to go to next year. Skydog explains the Jware chair toss event, and then we compete. Rootwars hacker wargames. I ask Int80 about using his nerdcore music in some of my videos. NotLarry explains rootwars. Some iPhone hacking with Lee Baird and John Skinner. I do a little Bluecaseing/Warnibbling with the Bluetooth on my Nokia n810. John, Lee, Brian and I go to the German restaurant. I blind DOSman with the light from my camera and check out what folks are doing with the Arduinos Droops brought for folks to play with. I check back in on R00tW4rz. I blind Droops. I talk Ettercap filters with operat0r. USB door key fun with the Arduino. More breadboard fun. Nokia n810 + Ettercap Filter + Lemon-part = win. Int80 gets down with his own bad self, and the rest of Phreaknic. I find an energy drink with protein. Folks play with the hardware keyloggers I brought, and we have some epic fail with the IBM Model M + USB adapter + Mac OS 10.5. Winn Schwartau joins in on the keylogger fun. DOSman and Zack use a directional antenna from the 9th floor to search downtown Nashville for WiFi access points. Zoom in on Al. John and Lee eat jerky. Daren and Shannon from Hak5 blind me this time. :) Then they do a quick interview. I interview TRiP about the legalities of wardriving, sniffing and leaving your access point open so you have plausible deniability of copyright infringement (most likely it won't hold water in court if you are a computer geek). I give Hak5 Daren beef jerky. Ziplock had more con badges than God. I meet up with Iridium. I talk with Nightcarnage about the audio/video setup at Phreaknic. As I predicted, the Potters won the WiFi Race. I say why this was the best Phreaknic ever. Using green lasers on crack dealers. Techno in the dark, the Aiptek action HD does not do well in low light. Nicodemius shows off his Minority Report like multi-touch table. Hula hoop contest. I check back in with Jeff Cotton and his USB keyed door. I strap on my gear to leave the con. Brian and I do a wrap up of our thoughts on Phreaknic 2008.

This is a quick and dirty video documentary of the things that when on around the talks and event at Phreaknic 12 (2008). Don't watch if you get sick at shaky cam movies like Blair Witch or Cloverfield. A rough timeline of the content in the video is as follows:

        Intro and leaving Louisville with Brian. Morgellon talks about hacking the Arduino micro controller platform. Sorteal talks about the LiVes Open Source video editor. AT&T Batman building by night. Mojo-JoJo soldering some stuff for the shooting range. The patron gods of hackerdom. Registration. Con swag overview. Morgellon  gets his discreet logic on. AK-47 building with HandGrip and Buttstock. Froggy talks up Notacon, which I plan to go to next year. Skydog explains the Jware chair toss event, and then we compete. Rootwars hacker wargames. I ask Int80 about using his nerdcore music in some of my videos. NotLarry explains rootwars. Some iPhone hacking with Lee Baird and John Skinner. I do a little Bluecaseing/Warnibbling with the Bluetooth on my Nokia n810. John, Lee, Brian and I go to the German restaurant. I blind DOSman with the light from my camera and check out what folks are doing with the Arduinos Droops brought for folks to play with. I check back in on R00tW4rz. I blind Droops. I talk Ettercap filters with operat0r. USB door key fun with the Arduino. More breadboard fun. Nokia n810 + Ettercap Filter + Lemon-part = win. Int80 gets down with his own bad self, and the rest of Phreaknic. I find an energy drink with protein. Folks play with the hardware keyloggers I brought, and we have some epic fail with the IBM Model M + USB adapter + Mac OS 10.5. Winn Schwartau joins in on the keylogger fun. DOSman and Zack use a directional antenna from the 9th floor to search downtown Nashville for WiFi access points. Zoom in on Al. John and Lee eat jerky. Daren and Shannon from Hak5 blind me this time. :) Then they do a quick interview. I interview TRiP about the legalities of wardriving, sniffing and leaving your access point open so you have plausible deniability of copyright infringement (most likely it won't hold water in court if you are a computer geek). I give Hak5 Daren beef jerky. Ziplock had more con badges than God. I meet up with Iridium. I talk with Nightcarnage about the audio/video setup at Phreaknic. As I predicted, the Potters won the WiFi Race. I say why this was the best Phreaknic ever. Using green lasers on crack dealers. Techno in the dark, the Aiptek action HD does not do well in low light. Nicodemius shows off his Minority Report like multi-touch table. Hula hoop contest. I check back in with Jeff Cotton and his USB keyed door. I strap on my gear to leave the con. Brian and I do a wrap up of our thoughts on Phreaknic 2008.

Marc’s initial shoplifting model in his post is based on John Colapinto’s concepts of matching a pattern of customer movements in the store with their estimated patterns of shoplifting behavioral patterns.    Marc’s asks how Coral8 might address this.   We are not ready to seek a vendor solution.  We do not yet have a workable detection model.

As indicated above, I don’t think the example situation cited by John and Marc is a viable model for automated processing.    Tracking the behavior of customer’s movements, by machine, would require some very sophisticated image processing technology that would be too expensive compared to any possible loss at most retails stores.    This type of behavioral pattern recognition. in retail stores, is performed by people (security personnel), not machines, observing people.  

To develop a machine pattern recognition application to detect retail shoplifting we need to build detection models that are economically feasible.  If we are going to use a model of shoplifting pattern recognition versus anomaly detection, we need to define the objects we must track.  

In the most simple model, we have merchandise-objects.   Stores normally (physically) track merchandise-objects only at the exit/entry points of the store using some electromagnetic proximity detection technology.   In this model, the detection configuration is a combination of simple alerting with humans watching the store (”minding the store”).    This is not complex event processing.

However, if we added another object to our model, the customer-object, then we start to get more “complex,” but we have not defined “complexity” yet because we have not defined the object properties, the possible states of the objects, and the relationships between the objects that are the basis for estimated situations.

Hence, model building is constrained by available resources, simple economics and risk (cost-benefit).  If we are detecting shoplifting in Walmart the cost-benefit model for implementing an automated shoplifting detection system would be different than at a top diamond store on 5th Avenue in NYC.   Protecting loss at a weapons-grade uranium respository follows a different model than protecting loss at a handicraft shop, naturally.

Like Marc, I find models to automatically detect shoplifting interesting, so permit me to close with a general discussion of shoplifting in the context of our CEP/EP reference model.

One approach would be do determine what objects will be represented in our model.   For example, if we are going to track merchandise, we need to model the ”merchandise-object”.  If we are going to track people, we need to define the properties of this “person object.”  If we are going to represent the store layout, we need to define all these objects (store-object, table-object, shelf-object, entry-object and so forth).  The model can get “complex” quite quickly. 

Editorial Note:  An object-oriented approach greatly assists complex model building because we can benefit from OO properties such as encapsulation and polymorphism.  For example, we can define a basic “person object class” and then create superclasses of this object for “customer-object”, “manager-object”, “or criminal-object.”

Generally speaking, each object we define will require a state-model, for example, in Marc’s example of a customer moving around the store, we would need to model the possible states (customer at the entrance, at table 1, at table 2, at shelf 1, in the bathroom, at the cashier, etc.)  Indeed Marc, this is complex event processing if we have modelled multiple objects and defined object-object relationships that indicate situations of interest.   For example, customer-object at table2 where merchandise-object has the property of  ”very expensive, high risk” and then customer-object changes state to “in bathroom”.  Of course, we need more key indicators, but you get the idea.

Right now, I am typing from the Taste from Heaven Vegetarian Restaurant in Chiang Mai and my battery is running low.  The owner of this excellent restaurant also runs the Elephant Nature Park, a non-profit organization advocating and acting on behalf of the rights of the mighty elephants in Thailand.  Would be great if we could also automatically detect the situation of “elephant abuse” by poachers and other crimes against nature.   Time to get back to my delicious mushroom salad, Northeastern Thai style.

As always, thanks for reading, time for me to get back to eating!

Thanks to a software program called a zapper, even technologically illiterate restaurant and store owners can siphon cash from computer cash registers and cheat tax officials.

[...]

Zappers alter the electronic sales records in a cash register. To satisfy tax collectors, the tally of food orders, for example, must match the register's final cash total. To hide the removal of cash from the till, a crooked business owner has to erase the record of food orders equal to the amount of cash taken; otherwise, the imbalance is obvious to any auditor.

[...]

The more sophisticated zappers are easy to use, according to several experts. A dialogue box, which shows the day's tally, pops up on the register's screen.

In a second dialogue box, the thief chooses to take a dollar amount or percentage of the till. The program then calculates which orders to erase to get close to the amount of cash the person wants to remove. Then it suggests how much cash to take, and it erases the entries from the books and a corresponding amount in orders, so the register balances.