In enterprise security, often refers to Palo Alto Data Loss Prevention (or similar "Protection/Data Loss Management" modules).
If this is for work, check your internal Palo Alto Knowledge Base or IT portal for the specific "PDLM" module update.
If this is the case, you are likely looking for a configuration backup, a set of policy templates, or a signature update file for a Data Loss Prevention scanner. 2. Proteomic Data Commons (PDC)
The is used to download large genomic and proteomic datasets in compressed formats.