In computer networks, the data is divided in smaller packets so the information can be transported. From these packets, it is possible to indicate where the packet is coming from and where it is going to. Information is very often available in plain language, and anyone along the transfer will be able to see the data as it […]

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In recent years, various “ransomware” type blackmail malwares are beginning to become more and more common. These programs provide a straightforward revenue for cyber criminals. Typically, a ransomware infected machine prevents the user from accessing desktop and ask for virtual money or a credit card transaction, so that the program can be rectified. So far, […]

There might pop in to your e-mail so-called spear phishing messages usually written in bad Finnish or in English. Sometimes the message content may seem very credible. Typically, in these messages IT maintenance, any authority, bank, partner, Paypal, Amazon, Google, Microsoft, UPS, DHL or other body is asking your contact information and will ask you […]

Sorry, this entry is only available in Finnish.

It’s not recommended that you use a USB memory stick for confidential data. Also, you ought to keep your entertainment and study related USB drives separate. Don’t use your study related flash drives in Internet cafes and alike. You can make your USB memory stick (= Flash/USB/thumb drive), more secure by using encryption: There are […]

Every student at the Oulu University of Applied Sciences has an OUAS account; a user name and related password. You need your account e.g. when you want to read your email, log in to the OUAS data systems e.g. Students intranet Oiva and map your home directory (to a Windows computer at the school network) Students […]

SSH – Secure Shell Tavallisilla pääteohjelmilla, kuten Telnetillä, siirtyy tieto selväkielisinä verkon yli, tämä koskee myös salasanoja. SSH:ta suositellaan käytettäväksi aina, kun yhteys otetaan turvattoman verkon yli. Suojaamatonta yhteyttä voidaan salakuunnella muilta verkossa olevilta tietokoneilta. Nykyään useimmissa palvelimissa on estetty Telnet-yhteyksien käyttö oman verkon ulkopuolelta tulevilta yhteyksiltä. Oamkin palvelimille (kuten students ja staff) ei voi […]

Consider the recipients of your e-mail When you reply to an e-mail check that the e-mail address in the to-field is correct. Use a descriptive heading. Don’t spread any circular e-mails. Prefer text only messages whenever possible (= No HTML-pages or word documents for message that is composed of just text) Instead of mail attachments, […]