Their eavesdropping apparatus (which is small enough to fit in a suitcase) was designed to take advantage of a weakness in a particular sort of photon detector in Bob's receiving equipment.

ECONOMIST: Secure cryptography is only as safe as its weakest link

So it was one of those few moments from a marketing perspective where you get to take advantage of a strong competitor at a moment of weakness.

FORBES: Samsung Mobile's Brian Wallace Discusses Successful Smartphone Campaign

Investors can take advantage of this through using GTC (Good Until Canceled) Limit Orders to buy weakness to a value level, and to sell strength to a risky level.

FORBES: Six Buy And Trade Technology Stocks

If you cannot sell your product without relying on consumer weakness, without running experiments to test which behavioral failures you can take advantage of, maybe you should be selling another product.

FORBES: The Ethics of "Manipulative" Product Rebates