Chapter 12

Security Seals and Printing

Security Printing

MoneyPrimary or first level inspectionSecondary or Second level inspectionTertiary or Third Level inspection

Need to study more closely what causes a person to recognize forged noteKind of like the HCI of preventing forgeriesSecurity usability

Techniques pages 246 - 247

IntaglioLetterpressSimultan pressesRubber stampsEmbossing and laminatesWatermarks

Modern Techniques

Optically variable inks Inks with magnetic or photoacoustic properties Printing features requiring special equipment

to see Metal threads and foils Screen traps Digital copy marks Unique stock

Technology moves forward

What is expensive and difficult to do today will not be tomorrow

Copying big issueCheck fraud

AlterationsCredit cardsTravel documents

Packaging and Seals

Print on substrate glue to packageSubstrate properties

Can use the properties of the substrate to mark and make unique

Problems of glueYou can typically cut the glue and remove

seal intact.

Vulnerabilities

Wristband sealEnemy is customerCustomer applies sealSeal re-use indistinguishable from failureSeals can be bought in marketplaceCounterfeit seals can be manufacturedEffective inspection is infeasible

Issues

Peculiarities of threat modelStaff diligenceRandom failureMaterials ControlNot protecting the right thingCost and Nature of inspection

Evaluation Methodology

How long has the system been used How widely available are the sealing materials Will person applying seal be careless or

corrupt Does seal protect right part of product What are quality issues Who will spot forged seals Are the evidential issues How will seals be disposed of

Discussion articles

Techniques used to protect new US currency especially tactics to spot forgeries at first level

New techniques to prevent check fraud

Past Articles

Site for the treasury’s prevention of counterfeit bills: http://www.treasury.gov/usss/money_technologies.shtml

They should have stuck to the 1 and 5 dollar counterfeits: http://www.heraldnet.com/stories/06/02/22/100loc_b4briefs001.cfm

Meter Security http://www.metering.com/archive/014/25_1.htm

Minimizing Fraud http://uaelp.pennnet.com/articles/article_display.cfm?article_id=239315

This is a 5 page PDF about the possibility of this security model making it out in the world, as well as a few examples.

http://csdl2.computer.org/comp/mags/co/2002/04/r4s22.pdf This is a general overview of bluetooth security, and how it can be used to implement the

"Duckling". http://www.niksula.cs.hut.fi/~jiitv/bluesec.html

Wow check fraud is simple.. http://msnbc.msn.com/id/7914159/ http://qchex.com/

Laser printing fingerprints – http://www.pcworld.com/news/article/0,aid,118189,00.asp

Nice article on de-incentive to catch

Wal-Mart fruad http://www.eweek.com/article2/0,1895,1748499,00.asp How they were caught, what they did: http://www.eweek.com/article2/0,1895,1748274,00.asp

List of Resources

Counterfeitinghttp://www.treasury.gov/usss/money_techno

logies.shtmlUsable Security

http://usablesecurity.com/

List of Resources

Secure printinghttp://www.art.eku.edu/programs/print/tech/c

olorIntaglio.htmlhttp://www.polestarltd.com/ttg/ttgdetail.htmlhttp://www.sekuworks.com/http://dmoz.org/Business/

Publishing_and_Printing/Printing/Products/Security/

List of resources

Seals and packaginghttp://www.stoffel.com/http://www.americancasting.com/

Walmart scamhttp://www.eweek.com/

article2/0,1895,1748499,00.asphttp://www.eweek.com/

article2/0,1895,1748274,00.asp