I am investigating a sensitive issue

Dolapo's laptop has been super slow of late and one of the reasons is; She tends to press the 'install later' for all the software and firewall updates that pops up every time she connects to her laptop. Here are some must-do's if she needs to protect her computer and the data on it.

Chidinma's work mate has just had her Facebook account hacked. Someone is posting nude images on her wall. She has deleted them but Chidinma needs to explain to her the best way to protect her browser, so it does not happen again.

Nasir is a correspondent for Dundun Media, which focuses on exposing corrupt practices amongst individuals in government. His laptop crashed and he urgently needs to send in his article for publishing tomorrow. He decides to use a neighbourhood cybercafe but is worried it may not be secure.

Chidinma worries that downloading all of the interesting apps she finds on her two phones also brings with it a high risk of them being infected with malware or spyware of some kind. To put her mind at ease, she does a little research about the incidence of such events.

Chidinma wants to send documents containing sensitive data to Nasir but isn't sure how safe they'll be in transit. She decides to read up to learn how she can prevent malicious users from intercepting the email en route to the intended recipient.

Nasir's computer was stolen and the results of his investigation on AGA and the story he was writing were unencrypted. He is worried that his sources may become compromised. If the documents had been encrypted then no one would be able to access them.