Compared with the rest of the country, London, in particular has seen a sharp rise in acid attacks, with 454 reported previous year, up from 261 in 2015. But I do feel that there is a sea of criticism for any of us who try and legislate in new areas, who will automatically be sneered at and laughed at for not getting it right", she reportedly said, adding: "I don't need to understand how encryption works to understand how it's helping the criminals.
In a wide-ranging speech, Rudd also announced new restrictions on chemicals that will "drastically limit" the sale of sulfuric acid.
Ms Rudd told the conference: "Acid and knife attacks have an absolutely horrific impact on their victims".
Similarly the crackdown on the sale of corrosive substances would mirror laws on knives, which bans the sale to under 18's and involves a penalty of six months in prison, or a fine.
Rudd said: "I want to make sure those who view despicable terrorist content online including jihadi websites, far right propaganda and bomb making instructions face the full force of the law".
Home Secretary Amber Rudd delivers her keynote speech on the third day of the Conservative Party annual conference at the Manchester Central Convention Centre in Manchester on October 3, 2017, in Manchester, England. Britain said WhatsApp's end-to-end encryption communication services allowed paedophiles and organised crime groups to operate beyond the reach of the law and called on the messaging service to move faster to help governments catch offenders.
The acid changes were part of a consultation on offensive weapons, which will propose banning the sale of knives to under-18s and outlawing the possession of knives like flick knives.
Ms Rudd said the technology will get the images taken down at an unprecedented rate.
She told the conference there had been "an exponential surge in the volume of child sexual abuse referrals", as she unveiled a GBP600,000 investment in new software that trawls the web for images of child sexual abuse. Our question to them will be "if not, why not".
She said Silicon Valley had to do more to help the authorities access messages on end-to-end encrypted services like WhatsApp. "And I will demand very clear answers", she threatened.