Mbuguah, Samuel MungaiMwangi, WaweruSong', Pang CholMuchiri, Geoffrey Muketha2019-03-202019-03-2020122223-4985http://erepository.kibu.ac.ke/handle/123456789/296Software based systems are ubiquitous in modern day operations. There has been an increase in software based system attacks; leading to the need to equip the project managers, software designers and software developers with a better predictive attackability model at the architectural design stage. Attackability is a concept proposed recently in research literature to measure the extent that a software system or service could be the target of a successful attack. A literature survey of existing technical models was carried out to identify gaps in them. Also, a literature survey on, human traits that lead to human beings and the software system they man being subject to social engineering attacks was undertaken. Then a conceptual model has been proposed to extend the existing technical model and incorporate a social attackability model to produce a holistic predictive attackability model.enAttribution-NonCommercial-ShareAlike 3.0 United Stateshttp://creativecommons.org/licenses/by-nc-sa/3.0/us/AttackabilityInternal attributesmodelexternal attributesmetricArticle