Đọc qua các điều khoản của dịch vụ trước khi đồng ý. Bạn nên luôn luôn biết những gì bạn đang nhận được vào, và bạn cần phải biết làm thế nào Google hoặc dịch vụ khác có thể chia sẻ thông tin của bạn. 4. Sau khi tài khoản của bạn được thiết lập, | Chapter 18 Playing It Safe Encrypt a File or Folder 1. Navigate to the file or folder you want to encrypt. 2. Right-click the file or folder and choose Properties from the context menu. Click the Advanced button to open the Advanced Attributes dialog box shown in Figure 18-5. 3. Select the Encrypt Contents to Secure Data check box. 4. If you re encrypting a file click OK twice to finish the process. 5. If you re encrypting a folder click OK twice to open the Confirm Attribute Changes dialog box shown in Figure 18-6. Make your choice and click OK again. 6. Back up your encryption keys as prompted from the system tray. Always back up your encryption keys. You may need the information later if you have to change the file settings on your laptop. Encrypting files and folders isn t fully supported in all versions of Soft Vista namely Windows Vista Starter Windows Vista Home Basic and Windows Vista Home Premium. Encryption may slow down access to certain files and folders but it Soft prevents unauthorized access even if the files or folders are removed from your computer. Encryption is a useful way to help prevent access to sensitive data. Figure 18-5 Enabling encryption Confirm Attribute Changes You have chosen to make the following attribute changes encrypt Do you want to apply this change to this folder only or do you want to apply it to all subfolders and files as well -1 Apply changes to this folder only o Apply changes to this folder subfolders and files I OK I I Cancel I Figure 18-6 Encrypting the contents of a folder 1111 68 Set Up a Secure Password Set Up a Secure Password 1. When creating a secure password use more than one word if possible which makes it a passphrase. 19aE74bFFg113 Figure 18-7 A random password 2. Never use password or any other word that can be easily guessed. 3. Use random strings of numbers characters and letters if possible as shown in Figure 18-7. 4. Use a mixture of upper- and lowercase letters as shown in Figure 18-8. 5. The more .
