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Oracle Tutoring, Campbell River, BC (250) 203-6544 (text) or (250) 830-0295 (talk)

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computer security

computer security, security

Information security: what does integrity mean?

Jack Mar 3, 2026 Tagged with cybersecurity, security triad

Self-tutoring about information security: the tutor mentions the idea of integrity. The following is according to …

Information security: what does integrity mean? Read more →

computer security, email

Email: some recent scams in my spam box

Jack Feb 1, 2026 Tagged with dot sbs, email scam, email subject, spamassassin

Self-tutoring about email and computer security: the tutor mentions some recent arrivals. The following is according …

Email: some recent scams in my spam box Read more →

computer security, email

Email: how did the email server know the phishing attempt was spam?

Jack Jan 19, 2026 Tagged with domain, email headers, email server, spam, spoofing

Self-tutoring about email security: the tutor mentions one way an email application knew to classify a …

Email: how did the email server know the phishing attempt was spam? Read more →

computer security, email

Computer security, email: the X-Spam-Score

Jack Jan 11, 2026 Tagged with email headers, email security, spamassassin, x-spam-score

Self-tutoring about email security: the tutor mentions an email header connected with Apache SpamAssassin. The following …

Computer security, email: the X-Spam-Score Read more →

computer security

Computer security: qr code security issue?

Jack Sep 8, 2025

Self-tutoring about computer security: the tutor mentions the potential security risk from scanning a qr code …

Computer security: qr code security issue? Read more →

computer science, computer security

Computer science: passkeys, part1

Jack Sep 29, 2024 Tagged with passkey

Self-tutoring about computer-oriented security: the tutor mentions passkeys. A passkey, as I understand, is part of …

Computer science: passkeys, part1 Read more →

computer security

Internet security: forced redirects

Jack Jul 18, 2023

Self-tutoring about the wonderful Internet: the tutor revisits topic he’s mentioned before. Today I clicked on …

Internet security: forced redirects Read more →

computer security

Computer security: malware and email

Jack Jan 7, 2022

Self-tutoring about computer security: the tutor mentions some ideas about email security. A question that might …

Computer security: malware and email Read more →

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