Blackjack casino machines might not be as trustworthy of players as it is to play with a real dealer, but that doesn't mean that the machines are rigged. They do provide you with similar odds to what you'd expect a dealer blackjack game to provide you with (they're almost the same, in fact, but machines allow for faster gameplay)
Blackjack machines in land-based casinos are not rigged, as long as you're playing in a reputable casino and not in an underground, unregulated site without the proper regulations that often come with having a proper site managed legally.
Do keep in mind, however, that blackjack machines are often regarded as fair, but that also means that their digital interface doesn't allow for the player to count cards. Not like it's easy to count cards in modern casinos, but it's still important to keep in mind that blackjack machines seem to always shuffle whichever hand comes into play.
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