SebastianZeki they usage TLS. That's pretty solid if you use it ideal (don't install your CA certificate, etc).
According come Whatsapp, all blog post traffic between the server and also your phone are encrypted. The same uses for iMessage. The initial contact for iMessage is initiated via common SMS, and does no travel v the wifi network.
Therefore, it will not be feasible (barring homebrew crypto protection flaws) for your employer to check out messages that pass through its wifi network, he will certainly only have the ability to see the you are using those applications.
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You could try using a proxy or vpn what to tunnel her traffic with a for sure pipe prior to "going the end to the web". Countless newer routers have actually vpn built in so you could set something up in ~ home... That means the traffic in between your machine -> job-related wifi -> residence would it is in encrypted, then from home -> web would it is in the only "open" traffic.
If a website is not using SSL, then assume anyone, native you come the destination, can read her messages. If the site provides SSL, then you may or might not it is in safe.
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If her employer is using a contents filtering proxy, such as BlueCoat or Websense, climate they may use an SSL certificate to decrypt and also read her messages. This is often done to ensure that confidential agency data continues to be confidential.
Content filtering proxies room internal agency devices and also as such, perform not call for certificates from main certificate authorities (CA). Together such, these species of certificates space issued by a local certificate authority created by the company. If her phone was issued by the company, they may have actually installed the certificate top top the phone. If the is your an individual phone, you would be have actually been prompted to accept the certificate before being allowed to continue browsing.
You can verify in your settings on an iphone phone or android for any type of user set up certificates.
A great rule of ignorance is to perform incriminating tasks outside a firm network.