Information leak in Add Presenters search

[heytensai]

What steps will reproduce the problem?

1. Create a new abstract
2. Click "Add Presenters"
3. Search for something with a lot of results, e.g. "e"

What is the expected output? What do you see instead?

Searching for a common, single letter has the effect of showing nearly all
the users on the system. This is probably not the desired outcome as it's
a) inefficient and b) an information leak.

Perhaps a simple, quick fix would be to enforce a minimum length on the
search? Or if there are more than a few results return a warning and
encourage the user to refine the search.

What version of the product are you using? On what operating system?

Using 2010.utosc.com

Please provide any additional information below.