Laura manages DLP for a large company where some employees have COPE and some have BYOD. What DLP issue could these devices present?

For the COPE device, there won't be a lot of risks, because this type of model is very secure and trustworthy. The device belongs to the company and only the corporative use is allowed. The company owns maximum control on the information managed by the device. Some Blackberry devices were only COPE designed.

For the BYOD device, is the opposite, because this type of model is very unsecure since it doesn't count with the security barriers like the COPE model does, leading to the user losing critical information or getting hacked by installing malware. Even though it is a cheaper alternative for a lot of companies, it's far away from beign the most recommendable in terms of security, productivity and privacy.