Dear OAC users,

At around 10:15am, on Wednesday, December 6, 2017, some users were temporarily blocked from accessing the OAC. This was a result of an advanced security update to our firewall. 

Please note: the OAC has an algorithm that blocks users’ IP addresses if they access vulnerable URLs. If  you get blocked, please contact the Technology Integrated Learning Team at for further assistance. Currently, only 1 out of every 500 OAC users have been blocked, and we expect that this should not affect the majority of users. 

If you wish to learn more about WordPress security please visit:

Technology Integrated Learning Team 

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