Protecting your mobile phones and laptops should be your top priority before using them.
We rely on mobile devices and laptops daily, but often neglect to properly configure them for maximum security.Setting up a six-digit passcode on your phone and using a simple password for Gmail or social media accounts isn’t enough. Without proper security, your devices can unknowingly get hacked and exploited for cryptomining or data theft. Stolen data and logs are often sold on the Dark Web, leading to severe privacy breaches.
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Android Security Settings
1. Enable SIM Pin
– Go to Settings > Security > SIM Card Lock or Settings > Network & Internet > SIM cards.
2. Encrypt Device
– Encrypt device storage under Settings > Security > Encryption & credentials.
3. Limit App Permissions
– Review and restrict app permissions under Settings > Privacy > Permission Manager or Settings > Apps > Restrict Permission for Individual Apps.
4. Disable Access to Notification Tray on Lock Screen
– Go to Settings > Lock Screen > Notifications and select Do not show notifications or Show when unlocked to block sensitive data from appearing.
5. Disable Smart Lock Features
– Turn off Smart Lock features like trusted devices and places under Settings > Security > Smart Lock.
6. Turn On Google’s Advanced Protection Program
– For heightened protection against advanced threats, enable Google’s Advanced Protection Program under Google Account > Security > Advanced Protection Program.
iOS (iPhone) Security Settings
1. Limit Lock Screen Access
– Disable access to Control Center, Wallet, and Notification Center from the lock screen under Settings > Face ID & Passcode.
2. Enable Lockdown Mode
– Turn on Lockdown Mode for extreme protection against targeted spyware attacks under Settings > Privacy & Security > Lockdown Mode.
3. Disable Notification Previews on Lock Screen
– Prevent sensitive info from appearing by going to Settings > Notifications > Show Previews and select When Unlocked or Never.
4. Find My iPhone
– Ensure Find My is enabled under Settings > Your Name > Find My.
5. Turn Off Siri Access from Lock Screen
– Disable Siri from lock screen under Settings > Siri & Search > Allow Siri When Locked.
6. Limit App Permissions
– Review app permissions under Settings > Privacy & Security (e.g., location, camera, microphone).
7. Enable Advanced Data Protection for iCloud
– Turn on end-to-end encryption for iCloud data under Settings > Your Name > iCloud > Advanced Data Protection.
8. Disable Personalized Ads
– Go to Settings > Privacy & Security > Apple Advertising and disable Personalized Ads.
Windows Security Settings
1. Update Windows Regularly
– Enable automatic updates under Settings > Update & Security > Windows Update.
2. Use BitLocker for Disk Encryption
– Enable BitLocker under Settings > Update & Security > Device Encryption or Control Panel > BitLocker Drive Encryption.
3. Enable Two-Factor Authentication (2FA)
– Use 2FA for Microsoft accounts via the Microsoft Authenticator app.
4. Signature Verification (Sigverif)
– Press Windows + R, type sigverif, and scan for unsigned drivers. Remove or update any flagged drivers.
5. Monitor Active Sessions
– Open Task Manager (Ctrl + Shift + Esc), go to Users, and log off any unauthorized sessions.
6. Virus & Threat Protection Updates
– Ensure automatic updates for Windows Defender Antivirus are enabled to receive the latest security definitions: Settings > Update & Security > Windows Security > Virus & Threat Protection > Manage Settings > Check for updates.
Linux Security Settings
1. Update Packages Regularly
– Schedule automatic updates using a package manager like apt:
>> sudo apt update && sudo apt upgrade
2. Enable Firewall
– Activate ufw (Uncomplicated Firewall) on Ubuntu or use iptables:
>> sudo ufw enable
3. Disable Root Login
– Prevent root login by modifying the `/etc/ssh/sshd_config` file:
PermitRootLogin no
4. Install Antivirus
– Use ClamAV or another antivirus tool:
>> sudo apt install clamav
5. Encrypt Partitions with LUKS
– Use LUKS for full-disk encryption:
>> sudo cryptsetup luksFormat /dev/sdX
6. Limit App Permissions (AppArmor/SELinux)
– Use AppArmor or SELinux to limit application permissions.
7. SSH Key Authentication
– Set up SSH keys for login and disable password-based SSH login by editing `/etc/ssh/sshd_config`:
PasswordAuthentication no
macOS Security Settings
1. Update macOS Regularly
– Enable automatic updates under System Preferences > Software Update.
2. Use FileVault for Disk Encryption
– Enable FileVault for full-disk encryption under System Preferences > Security & Privacy > FileVault.
3. Enable Firewall
– Activate the firewall under System Preferences > Security & Privacy > Firewall.
4. Limit App Permissions
– Review permissions under System Preferences > Security & Privacy > Privacy.
5. Disable Automatic Login
– Turn off automatic login under System Preferences > Users & Groups > Login Options.
6. Enable Two-Factor Authentication (2FA)
– Activate 2FA for your Apple ID under System Preferences > Apple ID > Password & Security.
7. Install Antivirus Software
– Use antivirus tools like Sophos.
Commonly Used Applications Security Settings
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1. Web Browsers (Chrome, Firefox, Safari)
– Enable “Do Not Track” and block third-party cookies for better security: Preferrably you can use Brave browser instead for blocking ads
– Use HTTPS Everywhere
– Disable autofill for sensitive data.
2. Messaging Apps (WhatsApp, Instagram, Telegram)
– Enable 2FA
– Keep backup codes with yourself at safe place
– Ensure end-to-end encryption is enabled.
– Don’t join random bots on telegram
3. Email (Gmail, Outlook)
– Enable 2FA.
– Frequently manage devices which are logged in
– Don’t click on phishing links
4. Cloud Storage (Google Drive, iCloud, Dropbox)
– Enable 2FA.
– Encrypt sensitive files before uploading.
– Audit file sharing permissions regularly.
5. Password Managers (LastPass, 1Password)
– Use a strong master password.
– Enable 2FA or TOTP
– Use complex generated passwords for all accounts
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Cyber Security starts with a Cyber Defense: If you can protect yourself you can go save others also…
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