Earlier quoted context omitted.
> Even a plumber who types up offers and invoices on a computer is subject to all of this mess. Yeah and that plumber has 1000s of customer names, addresses, phone numbers, mail addresses, in Europe maybe even SEPA Direct Debit data. Not funny if that kind of stuff leaks, especially not if you're, say, a person with a public register block due to domestic violence or whatever (basically, one step before witness prote…
Thousands of customers? Your numbers are out of touch with reality.
If your primary focus as an electrician, plumber or other tradesperson is SME or industry, of course, then there is far less customers.