Emmerdale fans think Gabby could be poisoning Kim as she attempted to hack the businesswoman's bank account.
In recent weeks Kim has passed out, acted out of character and suffered from forgetfulness.
Initially, she thought she may have dementia, but tests proved inconclusive.
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However, viewers discovered that Kim is being poisoned after her brandy, that she's drinking for comfort, is being spiked.
A mystery figure was seen two weeks ago pouring a white powder into the decanter.
But tonight, Gabby became the prime suspect and fans think she may be about to get caught out.
Yesterday's episode saw Gabby using Kim's passwords to log in to her bank account.
But tonight it was discovered that the password had been changed, causing Gabby to lock herself out.
With this breach noted in the system, fans think Gabby could be about to face the wrath of Kim.
Teena tweeted: "Does Kim know what Gabby is up to…wrong password, account locked?"
Ryan wrote: "Someone is onto Gabby."
Carol said: "Gabby isn't as smart as she thinks she is."
And Mike tweeted: "So someone is onto gabby trying to get money from the bank wasn’t she in the bank online last night?"
