Chani edit: additionally, the randomness in question here is that of computers and mobile phones, which is often actually pseudorandomness, with no quantum effects involved. Getting real randomness in a computer is actually a nontrivial problem
Anything which occurs on a quantum level is affected by events occurring on that level. Most computer processes occur on a quantum level. An algorithm used to create randomness in a computer programme is not always followed when executed for this reason.
Back when PCs were fairly new I tried to prove this to a friend of mine. He had created a game which used a "roll" of five die. He was showing it to me and his wife, and was so certain of the randomness which would be created that he was willing to pay a certain amount of money to anyone who was able to "roll" specific combinations in a row. I had told him several times previously that games of chance and the weather were more greatly influenced by events occurring on a quantum level than any other level and why, and also that thought for the main part occurred on a quantum level, so thought could affect the outcome of a game of chance under certain conditions. He always refused to believe me, and this was sort of his way of challenging me. So, with his wife there, I again explained my stance so she would know what was going on. I then said what combination I was going to "roll", hit the Enter button, and the combination then came up. He was flabbergasted. His wife smiled, said "let me try that", then said what combination she wanted, hit Enter, and it came up. I then said the next combination I wanted, hit Enter, and that came up. He was beside himself, but still didn't believe it and stopped the game to study the programme for the next hour or so. He could find nothing wrong but still refused to believe what I had been telling him. His wife, on the other hand, understood what I was saying and believed it was true, which is why her and I were able to manipulate the outcome of the "rolls".
You don't have to accept what I've written about games of chance, but it changes nothing whether you do or not.