These demonstrate technical skills in the area of work. Specialising in the security aspects of information technology solutions and protocols often misunderstood by general IT support staff such as DNS, SPF, DKIM, DMARC, SSL/TLS, authentication and cryptographic technologies.
The history of email is a good read.
Documents by David on various topics
These of historical interest written by David.
Documents that are linked in content on the web site.
Company Information
Founded in 1996 as an Australian company we're now in the UK serving a multi-national customer base.
Cleartext Ltd trading as Cleartext Systems, Cleartext Systems Cyber and Digital 4 Petrolheads.
Registered UK company number: 07815947. VAT Number: 124/383821. DUNS Number: 21-751-0836
Registered Office: Kings Head House, 15 London End, Beaconsfield, Buckinghamshire, HP9 2HN, United Kingdom.
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