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* internal or external regulations not allowing cloud computing; concern about data security, exact unknown location of data storage, the possibility of data leakage/loss, need to introduce a third-party cloud provider into the current IT organizational scheme ** total cost of ownership; price competitiveness highly debatable; unprofitable the less important the flexibility, non-standard requirements, often typical of large companies, increase costs; hidden costs related to, e.g., audit process, need to adjust to own needs *** concerns about the stability of own systems in the event of changes/updates to the cloud environment **** cloud as a separate process requires its own work, which is not always profitable, given its relatively low importance and share in the IT budget