Resolved - Wednesday, February 12, 2020:
The myMcGill portal is now up and running normally.
Original announcement - Wednesday, February 5, 2020:
The myMcGill portal (https://mymcgill.mcgill.ca) is presently unavailable.
IT Services is investigating the cause of this issue and we hope to resolve it as quickly as possible.
In the meantime, you may access common IT services via this list of direct links.