An Israeli startup named Source Defense recently claimed to have developed a solution against website hacking via third-party scripts. According to the company, almost all websites can be compromised by attackers exploiting this vulnerability.
CEO Hadar Blutrich says that they were able to come up with a solution using virtual pages where the third party scripts are run in the memory of the browser. In there, the script is only provided information that it is allowed to see, and then the resulting information that the script wants to write is also filtered.
Blutrich adds that by loading third parties into virtual pages, the actual page also loads faster in most cases.