Anastasiia is Product Engineer at Cossack Labs. She has 6 years experience in developing mobile apps and 3 years experience in making them more secure. Anastasiia is maintaining open-source security library Themis, that allows developers to easily integrate encryption into their apps and infrastructures, she is also conducting workshops and consulting teams about data protection design. Menwhile, she found a formulae mistake in the first edition of Serious Cryptography! 😀