Harbour and two colleagues from security consulting firm Mandiant were one of four teams to enter Defcon's controversial "Race to Zero" virus-writing contest.

FORBES: Magazine Article

Two years ago, after the Fed forced interest rates close to zero, I began writing about the dangers lurking in the bond market that were going to favor equities.

FORBES: With The Dow At All Time Highs, Why Are Investors So Queasy?

The late Alfred Herrhausen, chairman of Deutsche Bank, topped everybody and said he was writing it down to zero.

FORBES: Dow Jones Interactive

Each pulse switches the polarity, writing a one or a zero.

FORBES: Total Recall

Since some of this debt is due for repayment next year, the Bank of England has a deadline for deciding whether to roll it over into a perpetual zero-interest debt - which would be seen as, in effect, writing off the debt.

BBC: Turner: Time for helicopter money?