The security information on the barcodes is only meant to be decoded by Transportation Security Administration (TSA) officers, so it was not thought to be a problem that PreCheck selected which users would get a less rigorous safety check in advance.

BBC: Boarding pass barcodes 'can be read by smartphones'

One tool available for U.S.-based companies is the Overseas Advisory Council (OSAC), which provides current security related information.

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The best example of this kind of information sharing thus far is FIRST (Forum of Incident Response and Security Teams), circa 1990.

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According to McGoey, the key information these hijackers would have needed is Social Security numbers (often the unique identifier for business use), driver's license numbers, and date of birth or birth certificates.

CNN: Expert: Hijackers likely skilled with fake IDs

Mr. KEVIN JACKSON (Government Contractor and Computer Security Expert): One aspect of cloud computing is actually knowing where information is.

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The window is crafted to look like it has been put together by Germany's Federal Office for Information Security (BKI) and its society for prosecution of copyright infringement (GVU).

BBC: Ransomware page

The foundation of fraud detection is what professionals call "information matching"--reconciling all the information supplied by the taxpayer (including Social Security numbers) with the information on W-2s and 1099 (miscellaneous income) forms, not to mention investment income and bank transactions.

CNN: An Overtaxed IRS

Known as the Federal Data Services Hub, the project is taking the IRS's own records (for income and employment status) and centralizing them with information from Social Security (identity), Homeland Security (citizenship), Justice (criminal history), HHS (enrollment in entitlement programs and certain medical claims data) and state governments (residency).

WSJ: Review & Outlook: Your Next IRS Political Audit