British Pregnancy Advisory Service (BPAS), the UK's largest abortion services provider, has come under attack from thousands of hacking attempts.
Last month, hacker James Jeffrey was sentenced to 32 months in prison for stealing the personal details of 10,000 women from BPAS. The agency said that it had detected 26,000 attempts to break into its website over a six-hour period.
Since then, BPAS has been bombarded with another 2,500 attempts to break into its systems, according to the BBC.
The BBC added that nearly half of the attempts came from US-based IP addresses.
BPAS said that it had managed to block all these hacking efforts, and said that details of women who had registered for its services were safe.
Some 60,000 women contact BPAS each year, and 53,000 use their abortion services.
The website stores names, addresses and phone numbers of people who request information on services such as contraception, abortion and sterilisation.
In his hacking spree, Jeffrey did not obtain "medical or personal information relating to women who had received treatment at BPAS," the agency said.