There are good and bad ways to contribute. When watching what is happening in Ukraine, we of course want to help. IT professionals with cybersecurity skills can contribute directly. For the rest of us, the right way to contribute is with money.
Don’t contribute a used overcoat or an old phone. Charities are drowning in these. Give money to a reputable organization like the International Red Cross. Money can be used for whatever is necessary, and the brave people on the ground know if the highest need is for food, medicine, shelter, or transportation. Make a contribution, but make it a useful one.