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08 October 2020 Photo Istock
Whatsapp security
It is important to be safe when using WhatsApp. Do not leave your phone unattended when you are not close by.

There are 2 billion WhatsApp users in the world, and 1,6 billion WhatsApp users access their accounts on a daily basis.

However, it is important to also be safe when using this popular communication tool.

According to Cobus van Jaarsveld, Assistant Director: Threat Detection, Investigations and Liaison in Protection Services, it does happen that people’s WhatsApp accounts get hacked; this is a serious violation of privacy.

“It means a third party now has unlimited access to your personal chats, information, media – and in some instances, they can also masquerade as you by deleting your chats, replying to your chats, and committing crimes. That’s just the tip of the iceberg of how harmful it can be to get hacked,” says Van Jaarsveld.

He adds: “Hackers can access your WhatsApp data by various means, e.g. via WhatsApp web or registering your number on another device.

The South African Police Service (SAPS) provided the following tips to prevent one’s WhatsApp from getting hacked:

• Log out from all computers that you see in the list under WhatsApp Web. This will stop hackers from further reading your chats. However, this should be done every time you use WhatsApp web.
• Do not leave your phone unattended when you are out.
• Lock all your apps to prevent unknown people from accessing your apps.
• Do not connect your phone to unknown Wi-Fi connections, as hackers can also use the unique MAC address to access all your WhatsApp chats.
• In case your WhatsApp has already been hacked, deactivate your account by emailing support@whatsapp.com. Your account will be automatically deleted if not accessed for 30 days.
• Enable two-step verification under your WhatsApp account settings. This will add an extra layer of security to the app.
• Lock WhatsApp. It is imperative to have the AppLocker that will help you lock your WhatsApp. While WhatsApp does not offer this application per se, you can download it and the app will facilitate the use of your WhatsApp with a password or PIN. This will help to prevent anyone who has access to your phone from accessing your WhatsApp account, since they will require a password to open it.

News Archive

Dr Henry Jordaan’s research to establish benchmarks for sustainable freshwater use in agri-food industries
2014-08-22

 

 Photo: en.wikipedia.org

Dr Henry Jordaan, Senior Lecturer in the Department of Agricultural Economics, is working on a multi-disciplinary research project for the Water Research Commission. The project assesses the water footprints of selected agri-food products that are derived from field and forage crops produced under irrigation in South Africa. These foods include animal products, such as meat and dairy, and crop products such as bread and maize meal.

“The water footprint of a food product is the total volume of freshwater that is used to produce the product, measured from the farm to the actual consumption of the food product. Thus, the water footprint is a good indicator of the impact that the consumption of a product has on our scarce freshwater resource. The agri-food sector is a major user of freshwater in South Africa with a relatively large water footprint,” says Dr Jordaan.

However, the agri-food sector also has an important role in economic development in South Africa. It generates income and employment opportunities along the value chains of the food products.

The challenge is to maximise the economic and social benefits from using freshwater in an environment where freshwater gets increasingly scarce.

Through his research, Dr Jordaan aims to establish benchmarks for sustainable freshwater use in selected agri-food industries – from an environmental, economic and social perspective. These benchmarks will inform water users on the acceptable volumes of freshwater to use to produce food products. It will also inform users of the economic and social benefits that they are being expected to generate through their actions so that their water use behaviour could be considered sustainable.


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