Problem since updating Flash Player to version 20.0.0.306
Today my Macbook Pro (operating OS X El Capitan, version 10.11.3) automatically updated my Adobe Flash Player to version 20,0.0.306. Since then I have been unable to access the website of the ANZ Bank or its related ANZ etrade internet stockbroking facility. The message I get is that the computer cannot make a secure connection with the bank.
This problem does not happen with my other Mac or with my iPad. It applies only on this computer. It applies regardless of which user and regardless of which internet browser I use (Google Chrome or Safari). The problem does not occur if I open the computer in Safe Mode.
I urgently need to fix this problem.