Last time I checked, my L2 accounts, credit card numbers and pr0n sites logins are still intact. Well, was kidding about the last one.
What you should ALWAYS keep in mind: ANYTHING that hooks to procesess, hacks in between your client app and server, anything that is made by shady 3d party to overcome and alter the way things are supposed to work by their creators, what is downloaded from internet (especially for free) - is a POTENTIAL threat to your system, privacy, credit card, L2 account, pr0n site's account, your well-being, your sexual health and prosperity. Even my beloved L2Net ingame client is a POTENTIAL MIM, as it intercept my user data before redirecting and CAN deliver it somewhere without my knowledge.
Its up to you to evaluate all the risks vs benefits and to make final decission - use it or leave it.
If you are on this forum, it means you already accepted some risks.
And back on topic about l2tower security issues - before making assumptions, read the developer's comment first:
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