It is called public address for a reason! It's meant to be shared publicly with others and when you send or receive any transaction, that transaction will be saved on the blockchain and your address will be visible for everyone.
This is something you can't avoid but it's more of a privacy concern than a security risk. This is why it's recommended use a new address for each transaction.
There are many guides on how to set up and use a cold wallet but, unfortunately, most newbies don't read.

There is a big difference between trading bots and gambling bots. It's like you are comparing trading to gambling!
All what gambling bots do is placing bets on your behalf. They are used to save time and effort and as I said befire: their use does not change the odds of winning/losing.

I'm not aware of any bot used for sports betting and not sure how it would work! They are usually used with games such as dice and roulette where betting is kind of repetitive: enter bet amount and click spin/roll,rince and repeat.

^^
If we are talking about a lot of money, then most likely the person who sent that money will contact you and ask for a service in exchange or to send the money back.
The person who sent the coins must have got the address from somewhere (it can't be a typing mistake or something like that). So, it is possible to know who the owner of the address is or at least to which exchange it belongs.
Personally, I wouldn't move or spend those coins for as long as possible.

How can this be possible? Please correct me if am wrong but if the random number generator is flawed isn't all the attacker can do is to regenerate the twelve words of the seed? How can he know the passphrase you set manually (not generated by the flawed rng)?
Actually, this particular case shows how important the custom word is to secure your coins.
If the wallet is fake or have some malicious code (ie. keylogged) then that's a different matter.

Excuse me but how can he prove he didn't violate the casino's rules!
Let's say he was accused of having multiple accounts. What kind of evidence can/should he provide to prove he didn't do that? I can't think of any!
It's the casino rep who have to tell us what rule op did violate and provide evidences like ip logs (although I doubt they will do that, for privacy reasons).. Just saying!

The good thing is that Coinbox1 responded as soon as he got notified about this thread. So, hopefully this case will be solved soon.

You answered your own question. Those games (poker, ~blackjack..) require some experience and skills which most gamblers don't have. Besides, not everyone knows how to play them.
Slots, on the other hand, are funny and simple. All you have to do is to click the spin button and wait for the outcome.
This is why many gamblers, especially new ones, prefer luck-based games like slots over skill-based games.

Not sure if there is a command which returns only funded addresses but based on the information you provided, it looks like only the change address from the most recent outgoing transaction still has a balance (0.0006btc).
Look up that transaction ID on any block explorer, copy the address which received 0.0006btc,dump its private key from core then import it into Electrum.

^^
Just to clarify, OP asked an hypothetical question. He didn't really make a 20k bet and hit a big win. He just wanted to know if the casino will pay in such scenario.
I wanted to clarify this because the latest reply make it look like as if OP actually won a 20k bet and couldn't withdraw his winning and such confusion may harm the casino's reputation.
It would've been better if op asked in general without mentioning a casino in particular.

The main advantage of using hardware wallets is keeping your seeds/private keys safe by never exposing them to the Internet. You should connect your hardware wallet to metamask instead of importing your wallet seed into it.
By connecting your hw to metamask, you can access the non-supported tokens from metamask (by adding their smart contract addresses and other details manually as dkbit explained above) and you keep your wallet safe at the same time.

It seems there was miscommunication between you and the customer support agent or you simply you misunderstood what he said to you.
He didn't say they will never ask you to verify your identity. He said it was not needed at that moment
.

Regarding the technical issue with your visa card, did you try to make a withdrawal using another payment method(neteller, skill..)
I never played on marathon et but I think this is possible according to what I have read on this review:

The link to strategies page doesn't work. It's showing the "404 page not found" error message.
I think an "s" is missing at the end. Please fix it!

After selecting one of the strategies (let's say bc.game medium risk strategie: 5x payout and 25.21% increase on loss) then clicking on Martingale Calculatore, I have to fill all fields manually. I think it would be better if the "payout" and "increase on loss" fields get filled automatically for each strategy.

Yes, most new casinos do not have bug bounty programs. But, generally, when someone reports a serious vulnerability which may put customers funds or data to risk, they usually give a reward to the reporter as a gesture of gratitude (the reward can be in any form like special badge or membership, not necessarily money).

This is what bug hunters usually do. They publicly disclose the vulnerability after being sure it has been fixed.
Vulnerabilities have been found on the world's most popular websites (Google, fb..). So, OP should not take this personally.

If prices' volatility is hurting your business, then you have to solutions, either:
 - implement a payment gateway which supports converting crypto deposits into your fiat currency. I took a look at Binance Pay but not sure if they support this feature. Afaik, Coinpayments support it (I didn't try them myself so, plz, do your own research).
 - Only accept payments in stable coins (usdt, busd..)
If many of your customers pay in btc and you don't want to lose them, you may consider accepting lightning payments.

Why would you need time to answer such a simple question!
If the game is fair and it uses a provably fair algorithm then simply explain how it works and how the results are being generated.
You certainly realize that many will be reluctant to make a deposit and play a game they can't verify the fairness of its results especially if it's being provided by a new casino.

€20,878
khaled123

ملف المحفظة Wallet.dat مشفر بواسطة كلمة السر التي فقدتها للأسف. لذلك حتى أن كان لديك الملف فلا يمكنك استخراج المفتاح الخاص منه.
تحتاج لكلمة السر لفك تشفير الملف حتى تتمكن من استخراج المفتاح الخاص و استيراده في محفظة أخرى.
تخمين عشر كلمات عشوائية امر شبه مستحيل الا ان كنت تملك فكرة عن ما يمكن أن تكون تلك الكلمات لتقليل احتمالات البحث.

I just created an account and tried to claim the bonus but got the same error message as you. It looks like the promo code has expired and I was expecting that as it has been more than 24 hours since they shared it.
As a small gambler myself, I chose the CASINO welcome package as it seems more convenient for those who make small deposits but am wondering if we can change it later!
Also, on the Ann thread it says: "We will double your very first deposit of EVERY month up to $150 USD with 50 Free Spins on Gates Of Olympus

And if you deposit again in the same month we will match your deposit up to $600 USD"
But on the website it says: "200% First Deposit Bonus up to $200 + 100% Second Deposit Bonus up to $800 & 100 Free Spins on "Gate of Olympus"
"
So, which one is right or am I missing something?

OP, are you asking this question because you are afraid of being scammed or you just want to be sure they have enough money to pay your winnings?
Well, as far as I know duelbits are one of the most trusted crypto casinos and it's unlikely they will scam you or any one else. And based on the amount of money they are spending on marketing and promotions, it's obvious they won't have problems paying a 60k win or even more than that.
Just make sure to read their ToS and always Play by the book.

1. Telegram username: khaled0111t
2. Metamask Address: 0x686654eeC1CF7A2f64df724c4c8b7E7A3b972175
3. Network: Binance Test Network