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Module 4. Internet Security

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    INTERNET SECURITY DEFINITION Internet security is essential for both home and office users, protecting against fraud, theft , and property damage . It encompasses browser, network, and online data security, relying on encryption tools like PGP, firewalls, and antivirus programs . IMPORTANCES Privacy and confidentiality : Without protection, personal data can be intercepted and misused, leading to identity theft or scams. Identity theft : Hackers can exploit weak security to access financial or personal information, enabling fraud, unauthorized transactions, and loan applications. Data theft : Sensitive information such as photos, documents, and emails can be stolen, resold, or used for blackmail, damaging reputations and relationships. INSTANT MESSAGING Instant Messaging (IM) is a real-time communication method that allows users to exchange text messages, share files, and conduct video or voice chats through applications like Skype, WhatsApp, and Signal. IM provides featu...
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Module 2. Securing Operating System

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    Securing Operating System WORKS OF OS Works with the processor to manage tasks Handles input from devices like keyboards Manages files, directories, and data storage Controls peripheral devices (printers, scanners, etc.) Displays output on the screen Allocates system resources (memory, CPU time) Ensures device and data security SECURING WINDOWS Lock Out Unwanted Guests Rename the Administrator Account Enable software & Windows update Enable Windows Firewall and Add the apps into it Raise the UAC Slider Bar Lock the System When Not in Use Prevent the Automatic Login Create a User Account Password in Windows Disable the Guest Account Turn on Windows Security Enable BitLocker Use EFS (Encrypting File System) Disable Unnecessary Services & unwanted processes Hide files and folders Disable Simple File Sharing SECURING MAC OS Lock the System When Not in Use Prevent the Automatic Login Enable Auto Software Update Disable the Guest Account Enable FileVault & Firewall...
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Module 1. Introduction to Data Security

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    Introduction to Data Security DATA VS INFORMATION Information is processed data that carries meaning and value The difference is subjective , what is data for one person may be information for another SECURITY ELEMENTS Confidentiality Authenticity Integrity Availability Nonrepudiation POTENTIAL LOSS Final loss Unavailability of Resources Identity theft and fraud Loss of trust Data loss/theft Misuse of Computer Resources IMPLEMENTING SECURITY Precaution Precautionary measures protect systems from threats and minimize damage . Key steps include installing and maintaining antivirus and firewall programs, using strong passwords, downloading files only from trusted sources, performing regular virus scans, and keeping the system updated. Maintenance System maintenance supports precautionary measures by ensuring security and efficiency . It involves creating data backups, updating antivirus and firewall programs, maintaining sufficient storage, preventing CPU overheating, and c...
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