Danniella Westbrook has had her emails and social media accounts hacked.
The 42-year-old actress has also accused her hacker of falsely releasing information that claims she has had a drugs relapse.
She said: "It's not nice to think they are fixated on pretending to be me and getting access to all my private emails.
"To be honest, I'm going to go away and try and rest and relax. This whole thing is very frightening and draining.
"It's like this stalker won't give up until I'm run into the ground."
Danniella - who denied she has begun using cocaine again - admitted to being spooked by someone hacking her personal accounts.
She told MailOnline: "I'm both shocked and scared about how much control this stalker/hacker has on my private emails and social media.
"I'm scared that they might come after my kids or me."
Danniella's comments come shortly after a post appeared on her Instagram account advising her fans not to take drugs - although it's not clear who posted the image.
The picture was accompanied by the caption: "My number one piece of advice I would give to the younger generation is Dont do drugs!!! [sic]"
The former 'EastEnders' star said earlier this year that she was feeling well and was tired of being associated with her drugs past.
She explained: "Don't be worried about me, I am not fragile. I'm sick of being talked about as a drug addict and this, that and the other."
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