1

                                                                      Exhibit 23

                       CONSENT OF INDEPENDENT ACCOUNTANTS


We hereby consent to the incorporation by reference in the Registration
Statements on Form S-8 (Nos. 2-96564, 33-10035, 33-41709, 33-79772 and
333-46365) of Datum Inc. of our report dated September 9, 1999 related to the
financial statements of Digital Delivery, Inc. appearing on page F-2 of this
Form 8-K.


/s/ PRICEWATERHOUSECOOPERS LLP
- ------------------------------
PricewaterhouseCoopers LLP

Boston, Massachusetts
October 8, 1999