# data[].attributes.body
Spam started out just as email did, as a thought experiment.When Gary Thuerek sent the first spam message touting a new DEC computer system to ARPANET users in 1978, the backlash was instantaneous, and it took years before another spam incident occurred. In the early 1990s it was a challenge to obtain an email address, and so when one sent spam, the source was quickly identified and blocked quickly at receiving sites. Spammers soon discovered they could forge addresses and domains, and so IPs were blocked. Spammers in turn discovered that they could relay their messages through third-party mail servers facilitating the exchange of email in a collegial fashion, and the era of ‘open relay’ spam was born.The classic definition of spam is unsolicited bulk messages, that is, messages sent to multiple recipients who did not ask for them.

# data[].attributes.headline
Lesson 2:Why did we Start Leaving such Big Footprints?

# data[].attributes.subject
Lesson 2:Why did we Start Leaving such Big Footprints?

# data[].attributes.body
Digital footprints are the records and traces we leave behind us as we use the Internet.  Each time you visit a web site, you reveal some information about yourself to the owner of the web site: your IP address, which may include your geographic location, your web browser type and operating system, and, often, the last web site you visited. These bits of information seem relatively innocuous and even fairly anonymous. If these are footprints, they are fairly light ones.

# data[].attributes.headline
Lesson 3:What is the Economic Bargain for Internet Users?

# data[].attributes.subject
Lesson 3:What is the Economic Bargain for Internet Users?

# data[].attributes.body
Given the diverse nature of the global market, advertisers and publishers who place their ads need to find out as much as they can about their audience. This helps them identify the right demography, the right language, the right product, the right time, and all the other factors that can help them target the consumers effectively.  Online services collect data about what you do; some of that data is used directly to improve your experience (for instance, language settings, or single sign-on). Other pieces of data build up into profiles of you and the other consumers who resemble you in some way. That information, or inferences drawn from it, can be sold to third parties and used to decide what advertisements are most likely to influence you, and when

# data[].attributes.headline
Lesson 4:Are Digital Footprints a Problem?

# data[].attributes.subject
Lesson 4:Are Digital Footprints a Problem?

# data[].attributes.body
Digital Footprints is a loss of privacy and anonymity online.  As we participate in various Internet activities, we leave behind evidence of what we’ve done, where we’ve been, what we’ve been thinking, who our friends and families are, and more. These footprints build up over time, and can become enormous. The implicit footprints we leave behind also can be used to track us, and to link information we have shared, in one context, into a larger and more complete profile that extends across the contextual boundaries of what we do online.  The Universal Declaration of Human Rights offers everyone a “right to privacy,” but there is no universal agreement how privacy works on the Internet.

# data[].attributes.headline
Lesson 5:Do Different Devices Make Different Digital Footprints?

# data[].attributes.subject
Lesson 5:Do Different Devices Make Different Digital Footprints?

# data[].attributes.body
Smartphones and tablets tend to leave a very different footprint from laptops and desktop computers.  Apps connect directly to Internet services using specific interfaces. Control over which information is sent to other services/devices rests in the hands of the app developer, and is exposed to the end user only to the extent the developer permits. Mobile devices, in particular, also give users less ability to connect anonymously. Users of desktop computers and laptops primarily leave footprints via their web browser.

# data[].attributes.body
Your identity is the sum of your characteristics, including your birthplace and birthday, the schools you attended, your shoe size, and so on. Some of those characteristics never change, such as your birthday, and some change over time, such as your age, or hair color. Simply put, your identity is you are who you are and what you do. Don't be posting it or sharing it because they can use that to do things to you so don't believe everything you see and when you go to a website make sure it haves a shield or it says secure.

# data[].attributes.headline
Lesson 7:Who Is Tracking Me and How Do They Do It?

# data[].attributes.subject
Lesson 7:Who Is Tracking Me and How Do They Do It?

# data[].attributes.body
Advertisers, Publishers, and Aggregators  are the ones that work together to track you. Advertisers are companies that have products or services to sell and therefore they work directly with a publisher, The publishers are companies that publish advertisements online and the data aggregators, supposedly, collect anonymous data from their partners and use it to target ads.Anyways,when you browse a website, the site places a tracking cookie in your web browser and the browser will store that cookie on your device and send the cookie when you go back to that website.If you go to any websites that have  advertisements, then  third parties on them will send their own tracking cookies. The websites don’t really have any information about who you are or your profile since you did not authenticate to any of these websites, but they can still guess your age, sex, income and other details from your reading and browsing habits.

# data[].attributes.headline
Lesson 8: What Dynamics are at Work in the World of Digital Footprints?

# data[].attributes.subject
Lesson 8: What Dynamics are at Work in the World of Digital Footprints?

# data[].attributes.body
The economic dynamic gives a service provider a strong incentive to collect data, and to keep users under-informed about that aspect of the service. Online services, while accessible worldwide, must all originate somewhere, and that often infuses them with a particular cultural perspective. Each country brings to the Internet its own cultural norms, legislative and regulatory models, and economic frameworks. Digital footprints produce different reactions across the diverse constituencies that make up the Internet

# data[].attributes.headline
Lesson 9:How Does Legislation Affect Digital Footprints?

# data[].attributes.subject
Lesson 9:How Does Legislation Affect Digital Footprints?

# data[].attributes.body
The Internet is global, but privacy laws are not. The Internet ecosystem is complex and regulating it is a challenge.  g. There is a growing awareness of the potential privacy impact of any information that can be used to single out or treat an individual differently, even if the individual cannot be identified by name.  Some countries have laws that are designed to protect pre-defined classes of data that are traditionally considered more sensitive, including medical data, financial data, and government issued identifiers.