It is endemic to government: Think about it, CoJ and Sanral both work with high profile IT service providers in this country (companies which are ISO certified and should have COBIT and ITIL skillset on board). A security flaw is highlighted and the finger pointing starts. Government has to rely on their outsourced IT service providers who will not admit to any wrong-doing and point the finger elsewhere. There is simply nothing easier to shout "cyber attack" instead of implementing e-services based on best practises.
I for one am grateful that CoJ made such industry wide news as many computer literate people have become more aware of trivial security flaws such as present in CoJ, CellC, Vodacom, Ekurhuleni and have started reporting those to the organisations. Many security specialist attempts to find vulnerability with the intention to improve systems for the greater good and not to cause malicious damage as claimed by the likes of Sanral. TBH organisations such as CoJ or Sanral cause themselves more reputational damage by not owning up to the faults in their systems (and any reasonable person would expect a complex system to have faults).
In all cases those IT service providers will never take accountability for it and I think the government could not be bothered trying to understand IT - hence gross negligence in the implementation of systems and overpriced tenders (the famous Wordpress blog comes to mind) - in most cases, those issues will just "disappear" or dragged out through some wild accusations and lawsuits. Also government has no really accountability like a business (funding is received from the fiscus, so there is no worry that people will be fired or a department will shut down for inefficiencies - contrary to that, more consultants will be hired to fix the problem)
BTW: Ekurhuleni had a similar security flaw as CoJ, but it quietly fixed it (even so, their service provider mentioned security audits and due-diligence, which was never done as claimed though).
Side note: It is horrendously shocking to read how the new-media reports on cases like this - where has journalism gone to?