At 51, with a nearly identical background to yours, I can strongly relate to your e-mail. Although your inclinations may not run in the same direction as mine, given your prior teaching experience, strong industry experience and ongoing interest in the field, why not follow my example? I write a lot, teach a little, consult a little and keep my eyes and ears open for more opportunities in all three areas. There's plenty of work out there for security savvy folks in all of these areas. And if you're not comfortable being self-employed, there are plenty of companies that specialize in these areas of activity in the security field. For example, Foundstone, SystemExperts Corporation and hundreds of other companies specialize in this area. Likewise, lots of community colleges and other higher-level academic outfits are looking for full-time instructors or adjunct faculty to cover this subject matter for their student bodies.
If this advice doesn't fit your needs, please e-mail me directly at firstname.lastname@example.org and let me know what directions your thoughts might be leading you I'll be glad to try again at something perhaps more appropriate to your situation than mine.
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This was first published in March 2004