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Browser security

Source: licencja: CC 0.

Ochrona przeglądarki

You will learn
  • threats associated with using a web browser, how to prevent them,

  • how to use a web browser safely.

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nagranie abstraktu

web browserweb browserweb browser is a software which is installed on almost every computer, tablet or smartphone. None of web browsers is completely securesecuresecure. Each of them has security vulnerabilities, which can be eagerly detected by hackers and used to breach the security of your computer. It is crucial to make every effort to ensure that your “favourite” web browser is as secure as possible.

Phishing is an internet fraudInternet fraudinternet fraud, the form of data theft, that is committed by displaying a „malicious website” in order to obtain sensitive information such as passwords, account details or credit card numbers. Phishing attacks are carried out most often with the use of fake email messages which encourage the recipients to update their personal data at fake websites, which usually look identical to the legitimate sites.

Malware is a malicious software. It can be also placed on websites.

The anti‑phishing and anti‑malware security of web browsers checks every visited website and compares it with the lists of known malicious websites. This feature should be obligatorily enabled. Anti‑phishing security that blocks fake websites is one of the features of the majority of available antivirus software. When you use the Internet, make sure that this feature is enabled in your antivirus programme.

Task 1
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nagranie abstraktu

In the antivirus software installed on your computer find settings that are responsible for browser security.

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nagranie abstraktu

In order to keep your browser security:

  • configure the security and privacy settings of your browser,

  • keep your browser updated,

  • use encrypted connections (the HTTPS protocol),

  • be cautious when you install add‑ons since every add‑on decreases browser security,

  • install security plug‑ins, e.g. HTTPS Everywhere, Web of Trust (WOT),

  • check short links,

  • regularly empty the temporary and downloaded files folders of your browser,

  • do not save your passwords in web browsers,

  • use an account without administrator privileges while browsing the Internet,

  • block pop‑up adspop‑up adspop‑up ads.

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Pokaz multimedialny - sekcje ustawień przeglądarek dotyczące bezpieczeństwa i prywatności. Instrukcja obsługi z poziomu klawiatury: 1. Uruchomienie aplikacji - ENTER, 2. Na każdym ze slajdów czytany jest automatycznie tekst alternatywny po polsku, 3. Przy pierwszym uruchomieniu na pierwszym slajdzie, czytanie tekstu po angielsku - TAB, 4. Przejście między slajdami: do następnego slajdu - TAB, do poprzedniego slajdu - TAB + SHIFT, 5. Przejście do czytania napisu po angielsku - strzałka w górę + strzałka w dół (czyta tekst po angielsku widoczny na slajdzie).
Source: GroMar, licencja: CC BY 3.0.
Task 2
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nagranie abstraktu

On the Internet find the information about how to remove temporary filestemporary filestemporary files from the cache in popular web browsers.

Task 3
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nagranie abstraktu

Check in the web browserweb browserweb browser installed on your computer in what location temporary filestemporary filestemporary files and files downloaded from the Internet are stored.

Task 4
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nagranie abstraktu

How can you check to which website a short URL leads?

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nagranie abstraktu

SSL is a protocol used to provide securesecuresecure data transmission over computer networks by encrypting the data transmitted. It uses certificatescertificatescertificates issued by trusted certificate authorities. Due to its application, more secure services have been developed, e.g. HTTPS, which is the encrypted version of HTTP.

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nagranie abstraktu

Most web browsers display information about the type of communication and certificatescertificatescertificates of websites in their address baraddress baraddress bar.

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Encryped connection.
Source: GroMar, licencja: CC BY 3.0.
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Unencrypted connection.
Source: GroMar, licencja: CC BY 3.0.
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No certificate or incorrect certificate.
Source: GroMar, licencja: CC BY 3.0.
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nagranie abstraktu

When the computer you are using is not your own, do not perform operations that require transmitting sensitive data. If you have to use this computer, enable private browsingprivate browsingprivate browsing. Using private browsing disables collecting and storing information about the operations of a user. When you leave the privacy mode of your browser, none of the following information should be saved:

  • browsing history,

  • downloaded files history,

  • data in cookiescookiescookies,

  • filled‑in text boxes in forms,

  • search history,

  • the temporary filestemporary filestemporary files of visited websitesvisited websitesvisited websites,

  • website settings.

Task 5
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nagranie abstraktu

On the Internet find the information about how to run private browsingprivate browsingprivate browsing in popular web browsers.

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nagranie abstraktu

securesecuresecure browser:

  • enables to download auto updates,

  • has the feature that protects against phishing;

  • protects data during their transfer by encrypting them.

Exercises

Exercise 1
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Wersja alternatywna ćwiczenia: Determine which sentences are true. Możliwe odpowiedzi: 1. configure the security and privacy settings of your browser, 2. do not keep your browser updated , 3. use encrypted connections (HTTPS protocol), 4. be cautious when you install add-ons , 5. check short links, 6. regularly empty the temporary files folder of your browser, 7. do not save your passwords in web browsers, 8. use an administrator account while browsing the Internet , 9. do not block pop-up ads
zadanie
Source: GroMar, licencja: CC BY 3.0.
Exercise 2

Create a multimedia presentation about browser security. Find the needed information and the comparisons of the features of web browsers on the Internet.

Exercise 3

Visit the Web of Trust (WOT) website. Describe in English its idea.

Exercise 4
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Wersja alternatywna ćwiczenia: Indicate which pairs of expressions or words are translated correctly. Możliwe odpowiedzi: 1. pasek adresu - address bar, 2. certyfikaty - certificates, 3. ciasteczka - cookies, 4. oszustwo internetowe - Internet fraud, 5. pliki tymczasowe - pop-up ads, 6. wyskakujące okna - temporary files
zadanie
Source: GroMar, licencja: CC BY 3.0.
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Interaktywna gra, polegająca na łączeniu wyrazów w pary w ciągu jednej minuty. Czas zaczyna upływać wraz z rozpoczęciem gry. Jeden ruch to odkrywanie najpierw jednej potem drugiej karty z wyrazem. Każdy wyraz jest odczytywany. Kolejny ruch to odkrywanie trzeciej i czwartej karty. W ten sposób odsłuchasz wszystkie wyrazy. Nawigacja z poziomu klawiatury za pomocą strzałek, odsłuchiwanie wyrazów enterem lub spacją. Znajdź wszystkie pary wyrazów.
Source: Zespół autorski Politechniki Łódzkiej, licencja: CC BY 3.0.

Glossary

address bar
address bar

pasek adresu

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wymowa w języku angielskim: address bar
certificates
certificates

certyfikaty

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wymowa w języku angielskim: certificates
cookies
cookies

ciasteczka

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wymowa w języku angielskim: cookies
Internet fraud
Internet fraud

oszustwo internetowe

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wymowa w języku angielskim: Internet fraud
pop‑up ads
pop‑up ads

wyskakujące okna

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wymowa w języku angielskim: pop‑up ads
private browsing
private browsing

tryb prywatny

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wymowa w języku angielskim: private browsing
secure
secure

bezpieczna

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wymowa w języku angielskim: secure
temporary files
temporary files

pliki tymczasowe

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wymowa w języku angielskim: temporary files
visited websites
visited websites

odwiedzane witryny

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wymowa w języku angielskim: visited websites
web browser
web browser

przeglądarka internetowa

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wymowa w języku angielskim: web browser

Keywords

certificatescertificatescertificates

private browsingprivate browsingprivate browsing

securesecuresecure

web browserweb browserweb browser