Nothing is stored on the device and the memory is dumped on shutdown so there is no security risk of loss or theft. (slaw.ca)
As there may be security risks in sending information via the internet, you should assess these potential risks when deciding whether to use our online services. (moneysmart.gov.au)
Besides being a more secure way of receiving payments, an online payment system also has the added benefit of no cash in school, which is a security risk alone. (educationbusinessuk.net)