"When Network Associates halted development of its widely
respected PGP (Pretty Good Privacy) desktop encryption software in
late February, Julian Koh worried about his "postcards.'
"Koh considers everything that passes across the Internet --
e-mail, mailing list postings, Web pages -- as no more private than
postcards that can be read by anyone along their path. That
realization long ago inspired an epiphany for the Northwestern
University network engineer: 'I was really amazed at the ease with
which my network traffic could be intercepted and examined, even
with no malicious intent whatsoever.'
"It wasn't a question of Koh having secrets. There are just some
things that are no one else's business. So for the past five years,
both at work and at home, he has used PGP to routinely encrypt
potentially sensitive communication, turning ordinary data into
bits and bytes of meaningless gibberish readable only by those with
the proper digital key..."