Data & Cybersecurity

Passkeys, two-factor login, password managers, backups and ransomware defense — practical security for individuals, families and small businesses.

8 articles

Hand holding a smartphone with a thumb on the fingerprint area on a sunny apartment balcony

Passkeys Explained: Can They Replace Passwords?

A passkey signs you in with your fingerprint, face or PIN instead of a password, and it cannot be phished or leaked like a password.

14/10/2026 7 min read

Small USB security key plugged into a silver laptop on a light wooden desk

Data & Cybersecurity

Two-Factor Authentication Methods Compared

SMS codes are the weakest second factor, authenticator apps are better, and passkeys or security keys resist phishing best.

14/10/2026 6 min read

Couple sitting on a living room sofa looking at one laptop together

Data & Cybersecurity

Set Up a Password Manager Safely

Pick a reputable manager, protect it with a long unique passphrase and two-factor authentication, plan recovery, then move key accounts first.

14/10/2026 6 min read

External hard drive and laptop on a shelf in a small tidy office in late afternoon sun

Data & Cybersecurity

3-2-1 Backup for Phones, Laptops and Offices

Keep three copies on two types of storage with one offsite, keep old versions, and test restoring regularly.

14/10/2026 6 min read

Print shop owner standing between a large format printer and a desktop computer

Data & Cybersecurity

Ransomware Prevention for Small Businesses

Most ransomware enters through phishing, open remote access, unpatched devices and pirated software; close those doors and keep an offline backup.

14/10/2026 6 min read

Elderly man and his grandson on a tiled porch, the boy pointing at a phone lying face down

Data & Cybersecurity

Phone Security Settings and Fake APK Apps

Use a strong screen lock, update automatically, install only from official stores, and never grant accessibility or screen-sharing rights to unknown apps.

14/10/2026 6 min read

Woman at a kitchen table early in the morning with a closed laptop, a phone and a paper notebook

Data & Cybersecurity

Hacked? What to Do in the First 24 Hours

Protect money first, take back your email, lock the attacker out of other accounts, clean the device, then warn contacts.

14/10/2026 12 min read

Small open-plan office in Da Lat with four wooden desks, green plants and large windows

Data & Cybersecurity

Cybersecurity Baseline for Small Businesses

A one-page baseline covering accounts, devices, email, backups, payments and staff changes, reviewed quarterly, blocks most attacks on small firms.

14/10/2026 12 min read

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