Secured instant installation of applications

A method for securing application installation on a user device, comprising:

• inputting, from said user device, a request for automatic installation of said application onto said user device, said request comprising a request signature;
• verifying a validity of said request signature using a first key associated with a second key used to generate valid signatures;
• when said request signature is valid, responding to said user device that said automatic installation is authorized;
• and
• when said request signature is invalid, responding to said user device that said automatic installation is prohibited.

A system for securing application installation on a user device, comprising:

• a secure link server configured to:
• output a secured link for automatically downloading and installing an application onto a user device, said secured link comprising a signature string encrypted with a first key;
• and
• a verification server configured to:
• input, from said user device, a request for automatic installation of said application onto said user device, said request comprising a request signature;
• verify a validity of said request signature using a second key associated with said first key;
• when said request signature is valid, respond to said user device that said automatic installation is authorized;
• and
• when said request signature is invalid, respond to said user device that said automatic installation is prohibited.