CHAPTER 5 & MICROSOFT EXCEL

CHAPTER 5: DIGITAL SAFETY AND SECURITY


DIGITAL SECURITY RISKS

     

INTERNET AND NETWORK ATTACK

• Malware (malicious software) consists of programs that act without a user’s knowledge and deliberately alter the operations of computers and mobile devices

• A firewall is hardware and/or software that protects a network’s resources from intrusion

UNAUTHORIZED ACCESS AND USE

 

SOFTWARE THEFT

• Steals software media

• Intentionally erases programs

• Illegally registers and/or activates a program

• Illegally copies a program

INFORMATION THEFT

• Information theft occurs when someone steals personal or confidential information

• Encryption is a process of converting data that is readable by humans into encoded characters to prevent unauthorized access

• A digital signature is an encrypted code that a person, website, or organization attaches to an electronic message to verify the identity of the sender

          -Often used to ensure that an impostor is not participating in an
           Internet transaction

• A digital certificate is a notice that guarantees a user or a website is legitimate
• A website that uses encryption techniques to secure its data is known as a secure site

 

HARDWARE THEFT, VANDALISM AND FAILURE

 

 BACKING UP-THE ULTIMATE SAFETY GUARD

• A backup is a duplicate of a file, program or media that can be used if the original is lost, damaged or destroyed

          –To backup a file means to make a copy of it

• Off-site backups are stored in a location separate from the computer or mobile device site

    

INFORMATION PRIVACY

Information privacy refers to the right of individuals and companies to deny or restrict the collection and use of information about them

 

MICROSOFT EXCEL

Use function:

1. Select Formulas > Insert function

2. Select More Functions to add more functions.

Create a chart:

1. Select data for the chart.

2. Select Insert > Recommended Charts.

3. Select a chart on the Recommended Charts tab, to preview the chart.

4. Select a chart.

5. Select OK.

6. Select Design > Add Chart Element.