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You opened an application and it’s asking for access to your camera, microphone, contacts, or location? Does it really need all these permissions to work? If you don't think so, decline! Many applications are abusive and want access to your personal data. Your data is valuable! Only give permissions to what you consider necessary.

WiFi 2.4 GHz and 5 GHz bands

When it comes to setting up your Wi-Fi, you can choose the frequency band that best suits your needs: 2.4 GHz or 5 GHz. Prefer the dual-band option and enjoy the best of each!

Ethernet Cable Types

Are you going to use a wired Internet connection at home or work? Then be aware that the cable you use can impact the quality of your connection. Choose the correct type and ensure the best quality and full use of your Internet connection.

Scams in Messaging Applications

If an acquaintance sent you a strange message, either asking for help, money, or personal information, be suspicious! Before doing anything, get in touch with the person by video call or meet them in person. Confirm that the message is real!

Screen Lock

Your cell phone is also your wallet! So, enable the screen lock to avoid situations like invasion of privacy or damages, especially if your phone is lost or stolen. Protect yourself!

How the Internet Works

Have you ever wondered how data transfer occurs on the Internet? This is only possible because several companies, institutions, universities, banks, and other networks that make up the Internet, use common technological standards and have agreements that allow this data exchange, forming a large global network.

Types of mobile connections

Do you know what the acronyms 3G, 4G, and 5G that appear, for example, on your cell phone mean? They indicate that you are using mobile data to access the Internet. The newer the technology used by your device, the better the connection.

Anonymous Navigation

Are you surfing the web and want some privacy? Use the incognito/private browsing mode. With it, you can browse websites without leaving any traces, i.e. your access data such as passwords and cookies will not be stored, nor will your browsing history.

Radio Link Internet Connection

Is your Internet via radio? Interference may occur depending on the weather. Wait for the weather to clear up and see if the connection has also improved or been re-established.

Don’t save your data on third-party devices

Are you borrowing a computer? Whether it's the device of strangers, acquaintances, friends, or even family, don't save your personal data on it. Protect your information and privacy to avoid future issues.

NTP

Are your messages and e-mails being received out of order? The time on your computer may be wrong. By using NTP you won't have this problem anymore.

Don't share your devices

Has someone you don't know asked to borrow your cell phone, computer, or tablet? Be suspicious and be careful! The person who’s going to use it may have bad intentions! Besides invading your privacy, they can access banking, shopping, and other applications and make payments or transfers from your bank account.

Privacy Policies

When accessing a website, creating an account, or downloading an app, read the Privacy Policy. This is the document used by the companies responsible for the site and/or app to inform users how their data will be used and clarify the reason why this information is collected.

Bandwidth

If the available bandwidth on your connection is not enough for your needs, its quality will be impaired, and there may be slowness and congestion.

Jitter

Video calls failing? Ever heard of jitter? It measures instability on your network. The higher the jitter, the more unstable the connection.

Latency

Is your connection slow? Latency might be the problem, that is, the time it takes for a message to travel back and forth to its destination (round trip). The higher the latency, the worse the Internet quality.

Browser Cookies

Do you know what cookies are? Present on many websites, they are informational files that help to improve your online experience when downloaded by browsers. However, please be aware that some cookies can capture and use your personal data for different purposes!

Hashtags

Are you posting on social media? Don't forget to use hashtags! Keywords and phrases can help people easily find your posts!

End-to-end encryption

Are you sending an important message over the Internet? Make sure the applications you use apply end-to-end encryption. Protect your information!

Safe shopping: use a virtual card!

Are you buying online and want to pay with your card? Generate and use a virtual credit card! You can easily block it in case of fraud or data leakage.

Loss of packets

Have you ever been watching a video on the Internet and suddenly the image and/or voice fails? This can happen because of loss of packets during transmission. The greater the loss, the lower the video stream quality.

Public Networks

Free Internet that you can access from anywhere is great! But be careful when using a public network because they don’t ensure your privacy nor security.

Data Leakage

Large data leaks have happened on the Internet, so stay tuned and make sure your personal data has not been leaked. After leaks, data breach attempts increase. Pay extra attention to detect scams and adopt possible mitigation measures!

Be careful with the information you share

Are you going to share your photos online? Make sure no important information is on them. Do not show your address, license plate, ID details, and credit cards numbers. Stop ill-natured people from using these images to cause you harm.

Take care of your personal data

Protect your personal data, share it only with people and institutions you trust and make sure that they’re receiving your data. If a stranger or someone who is not close to you asks for your personal information, such as passwords or access codes, please don’t share this information with them! Be cautious! It could be a scam!

DNS - Domain Name System

On the Internet, all devices use an IP address (Internet Protocol) to communicate. This is how the information is addressed. But for us, users, memorizing sequences with so many numbers to log into websites would be nearly impossible. That’s why we use domain names, like “cidadaonarede.nic.br”, for example. It’s much easier! But how does it all work? The Internet component in charge of this “translation” work is called the DNS – Domain Name System. It translates domain names into IP addresses.

SEO - Search Engine Optimization

Is your website not having as much visibility or access as you wanted? Study SEO - Search Engine Optimization. The techniques you learn, when applied to your site, will greatly improve your search results.

Website development

Are you going to create a website? Pay attention to web standards: HTML5, CSS3, and JS. They ensure that website information is accessible and available to users in the best way!

Artificial Intelligence and cookies

How can ads and shopping sites make such good suggestions related to our interests? It seems like they know what we want. In fact, they use Artificial Intelligence (AI) to analyze our data and offer us related products and services. We don’t realize it, but we are being monitored and watched on the web all the time. Be aware of the permissions and cookies you accept when browsing the Internet.

Hiring an Internet plan

Are you going to hire an Internet plan or upgrade your current one? Before you do it, check your WiFi router capacity. It may limit Internet speed.

Change your router password

When installing a new router at home, remember to change the default network name and password! This prevents malicious access attempts and protects your connection.

Parental Control

Does your child want to use a cell phone? Depending on their age, enabling parental control is important. With this option, you can restrict which apps and actions your children will use and protect them.

Test your website with a Focus Group

Want to know if your website or app will be well received by your audience? Create and use a focus group, that is, gather a group of people that represent your target audience to test your product. Their opinion can help you!

Wi-Fi signal has a hard time going through walls

Just as your car radio loses signal when entering a tunnel, your Wi-Fi signal can become weaker when it goes through walls and doors. Pay attention when installing a router in your home. Choose a place that improves signal range.

Electronic devices can interfere with Wi-Fi signal

Wi-Fi uses electromagnetic waves to connect devices to the Internet. Therefore, other electronic equipment can interfere with your Wi-Fi signal! Think carefully about where to place your router.

Web Accessibility: subtitle your videos

When publishing a video, do not forget to add subtitles to it. Persons with hearing impairments depend on subtitles to understand the content. Make sure everyone is included in the network!

Web accessibility: describe your images

Are you posting an image on social media? Describe your content. Visually impaired people also need to understand what you share. They use screen readers to navigate, and image descriptions also allow them to feel the experience you want to convey. Thinking about digital inclusion is crucial!

Use more than one browser on your device

Did you try to access a website but couldn’t? Did you try uploading something or do some other operation and it didn’t work? It could be a compatibility error between the website and the browser you are using. Try a different one!

Save your Internet data plan

Just as we save cell phone battery, we can also lower data usage when our Internet plan is running out. See how to enable this feature!

How to turn your phone into a Wi-Fi router

Is your Internet at home not working? You can use your smartphone as a Wi-Fi router! All you have to do is enable it. Just remember that this consumes mobile data.

Backup

Problems with your computer or mobile phone? Do you usually back up your files? With a backup, you can restore the content of your device or transfer it to a new one. Do not forget to regularly back up your data and keep it updated.

Wired networks are the best connection option

Although practical, Wi-Fi networks can suffer from interference, signal loss, slow connections, and latency, among other problems. Whenever you desire more stable navigation with better response time, a wired connection is preferable.

Beware of fake apps

Are you going to install an app? Only download apps from official sources and stores, check the developer data and ratings by other users, and be careful with the permissions you provide when installing. Do not fall victim to scams with fake and malicious apps.

Apps and programs consume resources

Is your program not working as expected and appears to be slow? It may be because of other programs that are open at the same time. Apps that are running in the background can consume memory and processing power on your computer or smartphone, making other apps slow. Additionally, some apps consume a lot of bandwidth (such as streaming and torrent apps) and can harm other programs that also consume Internet data. Therefore, close all programs and apps that are not being used.

Your phone is your wallet

Digital payments, banking apps – nowadays your phone is like your wallet. Take care of it as if it were. Activate your screen lock and report theft or loss to the police.

Wi-Fi channel interference

Did you know that your neighbor's Wi-Fi signal can interfere with the quality of your Internet connection? This can happen if you coincidentally use the same Wi-Fi channel (frequency). Solving an interference problem is simple, just change the channel being used.

Do not trust strangers on the Internet!

Are you going to add a new contact to your networks? Do you know and trust this person? Playing online games with strangers does not mean that you know or can trust them. Think carefully before adding people to your social networks.

Do not click on everything you receive

Be careful when using the Internet! Is the offer too good to be true? Did you receive a message from a strange number out of nowhere asking you to install an unknown app offering a world of advantages? Do not click on it, it might be a scam!

Keep programs updated

Have you ever ignored or delayed a program or system update for too long? Know that this decision can compromise the security of your devices! Many software updates include security fixes. Keep your systems updated!

Stay tuned when shopping online

Before shopping online make sure the store is trustworthy. Search for information about it, see whether it has a contact phone number or a physical store, and look for reviews on the Internet. Avoid scams and fraud when shopping.

Cyberbullying: What if it happened to you?

Do not fool yourself, not every joke made at someone else's expense comes off like simple child's play. What may seem innocent or very funny to one person, can have an extremely negative impact on another. Bullying and cyberbullying can have serious consequences.

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All videos

Full section of videos available on our website

What is a Botnet?

What is an IMEI?

Produce Accessible Content

Cellphone and Insomnia

Parental Mediation

Cellphone Backup

Abusive VPNs

Social Media Can Be Addictive

Electronic Waste

What is a VPN?

Types of connections

Application Permissions