DoAssignment study guide

C1.5 · Identify risks of online services and identity exposure

Learn to identify risks of online services and identity exposure through clear examples and targeted practice.

Ontario Grade 10 Computer Science

Computers and Society

Recognizing how ordinary online choices can reveal information about you

Online services can help people communicate, learn, play, and share. Using one may also involve giving information to the service or showing information to other people. Identity exposure happens when details that identify or describe someone become visible or available in ways they did not expect. This lesson focuses on identifying those risks. It does not assume that every service is unsafe or that every piece of shared information will cause harm. The useful question is: what information is involved, who might be able to see it, and what could that make possible?

What you will learn

Identify ways online services can expose personal information.
Explain how information shared in one place may create privacy or safety risks.
Recognize that an online identity can include more than a name or password.
Use input, process, and output to describe a simple online-service interaction.

1. What counts as identity information?

Some identity information directly names a person, such as a full name, photograph, or personal email address. Other details may not identify someone by themselves but can reveal a lot when combined. A school name, team uniform, regular activity, location tag, or familiar username might help someone recognize a person or learn where they spend time.

An online identity is the collection of details and activity connected to someone online. It can include a profile, posts, comments, images, and information entered when using a service. A screen name is not automatically anonymous: a profile picture, repeated username, or personal details in posts may connect it to a real person.

Consider a student who shares a photo from a school event. The photo may show the student's face, a school logo, and the event location. Each detail can seem ordinary, but together they may make the student's identity or whereabouts easier to recognize.

Identity information includes direct identifiers and details that can identify someone when combined.
A username or profile can reveal information even when it does not show a full name.
A post can reveal details about other people as well as its author.

2. Risks of using online services

An online service may ask for information to create an account or provide a feature. That information is an input: for example, a name entered into a profile or a photo selected for sharing. The service processes the input according to how it is designed. Its output might be a profile page or a shared post. Depending on the service and the user's choices, other people may be able to see some of that output.

This input–process–output description helps us ask where exposure could happen. Input is what the person provides. Process is what the service does with it. Output is what the service displays or sends. It is a simple way to think about an interaction, not a guarantee about how a particular service handles information.

One risk is that information reaches a wider audience than intended. A public post may be seen, copied, or passed along by people beyond the original audience. Another risk is unwanted contact if a post reveals a way to reach someone or details about their routine. A post can also be used to imitate someone or make an unkind or misleading presentation of them. These outcomes are possibilities to consider, not certain results of posting.

Services and settings differ. Before sharing, a person can check what information a service requests and who can see a profile or post. They can choose not to provide details that are not needed for their purpose, and ask permission before posting identifying information about someone else. These choices can reduce exposure, but they cannot guarantee that shared information will remain private.

Input is information provided; process is what the service does; output is what is displayed or shared.
Consider audience, identifying details, and possible unwanted contact before sharing.
A privacy setting or limited audience does not guarantee that information cannot be copied or shared.

3. Notice combinations and make a careful choice

Identity exposure often comes from combinations rather than one dramatic detail. A first name beside a team photo, a school logo, and a location tag may reveal more than the student intended. Even separate posts can add up: a profile can show interests, places visited, and patterns of activity.

A practical check is to pause before submitting or posting. Ask: Does this include a name, face, contact detail, school, or location? Who can see it? Could the details be combined with other information? Am I allowed to share information about everyone shown? If the answer raises concern, leave out a detail, choose a smaller audience, or do not post it. For a concern that needs help, talk with a trusted adult or the appropriate person at school.

Accessibility matters too. A student may use an online service to participate in a class activity when in-person participation is difficult. The service can support participation, while a public profile or shared image may reveal more than the student intended. The goal is not to exclude the student from the service; it is to consider which identifying details are necessary for participation and who needs to see them.

Separate details can combine to reveal a person's identity, location, or routine.
Check the information, audience, and people represented before sharing.
Privacy awareness can support participation without treating online services as automatically good or bad.

Worked example

A profile asks for personal details

A student joins a hobby service. It asks for a display name, a profile photo, and a school name. Identify the input, process, output, and one identity-exposure risk.

Profile information flow

A simple model of information submitted to a service and shown in a profile.

Identify the input
The student provides a display name, photo, and school name. These are inputs because they are details submitted to the service.
Describe the process and output
The service uses the submitted details to create or update a profile. The profile is an output if the service displays it to the student or other people.
Identify a risk
If other users can see the photo and school name together, they may be better able to recognize the student. The student can check the audience and consider whether the school name is needed.

Answer: Input: display name, photo, and school name. Process: the service creates or updates the profile. Output: the profile as displayed. Risk: the combined details may make the student easier to identify.

Check: The risk is about the combination and visibility of details, not a claim that the service will misuse them.

Worked example

A photo reveals more than its caption

A student plans to post a photo with the caption, “Great practice today!” The image shows the student's face, a team uniform with a school logo, and a sign naming the sports field. What information could be exposed?

Details in a shared photo

An image can contain identifying details in addition to its written caption.

Look beyond the words
The caption says the student attended practice, but the image adds other information. A face may identify the student, the logo may point to a school, and the sign may identify a location.
Consider the combination
Together, the details could help someone connect the student with a school and sports location. If the post is visible to a broad audience, more people may see those details than the student intended.
Choose what to share
The student can decide whether the image is necessary, remove identifying details, or choose a more limited audience. If other people appear in the photo, the student should consider their privacy too.

Answer: The photo may expose the student's face, school connection, and the location of practice. The risk depends in part on who can see the post and whether the details can be combined.

Check: The caption alone does not describe all the information in an image.

Worked example

A username is not the whole story

A student uses the screen name “MapleSkater” and does not put a full name in a public hobby profile. The profile also has a recognizable photo and posts about a local rink and regular practice times. Identify why the screen name alone may not prevent identity exposure.

Clues connected to an online profile

Different profile details can help connect a screen name to a person or place.

Identify the separate clues
The profile contains a screen name, a recognizable photo, a location, and a routine. These details provide different clues about the account owner.
Explain how clues combine
Someone who recognizes the person or knows the rink may connect the profile to a real student. The regular practice details may also reveal where the student is likely to be at certain times.
Name a careful choice
The student could remove the photo or location and routine details, or limit who can see the profile. These choices can lower exposure, though they cannot guarantee that information already shared will stay private.

Answer: A screen name does not make the profile anonymous when a recognizable photo and location or routine details can connect it to a real person.

Check: The risk comes from the profile details together, not from the screen name by itself.

Common mistakes and how to avoid them

Thinking a screen name always hides someone's identity.

Correction: A photo, location, school connection, or repeated details may identify someone even without a full name.

Assuming that a post contains only the information in its caption.

Correction: Images and other details may reveal faces, locations, routines, or connections.

Assuming a limited audience guarantees privacy.

Correction: A person who can see information may copy or pass it along, so audience settings reduce but do not eliminate exposure.

Lesson summary

Identity exposure occurs when information that identifies or describes someone becomes visible or available in an unexpected way.
Online services involve input, process, and output: a person provides details, the service handles them, and the service may display or share results.
Names, photos, locations, school connections, and routines can reveal information, especially when combined.
Before sharing, consider what is included, who can see it, and whether it also exposes someone else.

Check your understanding

Question 1

A student shares a photo that shows their face and a school logo. What is the clearest identity-exposure concern?

The details could help viewers connect the student to a school.
The photo proves that the service will misuse the student's information.
A school logo prevents viewers from recognizing the student.
A photo cannot reveal information unless the caption includes a full name.

Show answer and explanation

The details could help viewers connect the student to a school.

The face and logo may combine to identify the student or their school. The photo does not prove that misuse will occur.

Question 2

Which is the best example of input in a simple online profile interaction?

The profile page as displayed to viewers.
The service creating or updating the profile.
The photo and details the user submits.
A viewer recognizing a location in the profile.

Show answer and explanation

The photo and details the user submits.

Information submitted by the user is input. The service's handling is process, and the displayed profile is output.

Question 3

A profile has no full name, but it shows a recognizable photo and a regular practice location. Which statement is most accurate?

The profile cannot identify anyone because it has no full name.
The photo and location may provide clues that identify the person.
The location is private because it is connected to a hobby.
Only the service can see profile details in every case.

Show answer and explanation

The photo and location may provide clues that identify the person.

Details other than a full name can help connect a profile to a person, especially when combined.

Key terms

Identity exposure: A situation in which details that identify or describe someone become visible or available in ways they did not expect.
Online identity: The details and activity connected to a person through online profiles, posts, images, and service use.
Input: Information a person provides to a service.
Process: What a service does with information it receives.
Output: Information or a result that a service displays or shares.

Continue through ICS2O

View the complete ICS2O Ontario Grade 10 Computer Science curriculum and lessons

Tutor support for C1.5 · Identify risks of online services and identity exposure

Working on C1.5 · Identify risks of online services and identity exposure in ICS2O? Bring the question and your own attempt. In a live session, you can trace a small example and find the first step where the output differs from what you expected. Ask about the first step that does not make sense, then try a similar question yourself.

Explore coding tutoring · Request an eligible free 30-minute introduction. Your request is matched by subject and language; a tutor must accept before a time is confirmed.

برای مبحث C1.5 · شناسایی خطر خدمات آنلاین و افشای هویت در درس ICS2O، سؤال و تلاش خود را همراه بیاورید. در جلسه می‌توانید یک مثال کوچک را دنبال کنید و نخستین گامی را که خروجی با انتظار شما فرق دارد پیدا کنید. راهنمای معلم برنامه‌نویسی را ببینید یا جلسهٔ معارفهٔ رایگان ۳۰ دقیقه‌ای درخواست کنید. زمان جلسه پس از پذیرش معلم قطعی می‌شود.

About this lesson and its review

Published by DoAssignment. This reviewed lesson follows Ontario Grade 10 Computer Science (ICS2O), expectation C1.5. It is a study resource, not an official curriculum publication.

Before publication, content is checked for structure, mathematical or chemical notation, calculations, course boundaries, and readability. Errors can still occur, so corrections are welcomed.

Official curriculum reference

Report a correction or ask a question