A not particularly impactful piece of trap Ice for any corps apart from Chronos Protocol: Selective Mind-mapping, which will get good value by trashing a card of choice from the runner's hand. While it is free to rez it does take up a card slot and a to play + installation costs. Analysing the economic side of Data Mine we see the corp invests a card and installation costs in order to either tax a runner with an AI breaker or to take out one random card from the runners hand. Unless the corp was lucky to hit a particularly valuable card, the runner has only lost a to replace the card. It is unlikely that Data Mine will lead to a flatline outside of Jinteki: Personal Evolution and that is only if the runner is taking dangerous risks.
This card sits in a faction that already has a wide selection of high quality cheap Ice such as Pup, Yagura, Cortex Lock, Himitsu-Bako, Lockdown and possibly Harvester or Chum. Often in you will not have a lot of spare slots (especially not Ice slots) in your deck so this Ice will not see much play outside of Chronos Protocol.