Reply To: T5B lounge – worth the detour?

[Blair Waldorf Salad]

I only ever walk the tunnel when departing and arriving. I saw a story that a train malfunctioned and opened doors on both sides and all the passengers were sent back to T5A security.

On a related point, am I right in saying if one lands at T5B and has a connection also from T5B, one has to still follow the hordes to T5A to do transfer security?